Algebra Examples

$\frac{\frac{a}{1 + a} + \frac{1 - a}{a}}{\frac{1 + a}{a} + \frac{a}{1 - a}}$

Step 1

Multiply the numerator and denominator of the fraction by $(1 + a) a (1 - a)$ .

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Step 1.1

Multiply $\frac{\frac{a}{1 + a} + \frac{1 - a}{a}}{\frac{1 + a}{a} + \frac{a}{1 - a}}$ by $\frac{(1 + a) a (1 - a)}{(1 + a) a (1 - a)}$ .

$\frac{(1 + a) a (1 - a)}{(1 + a) a (1 - a)} \cdot \frac{\frac{a}{1 + a} + \frac{1 - a}{a}}{\frac{1 + a}{a} + \frac{a}{1 - a}}$

Step 1.2

Combine.

$\frac{(1 + a) a (1 - a) (\frac{a}{1 + a} + \frac{1 - a}{a})}{(1 + a) a (1 - a) (\frac{1 + a}{a} + \frac{a}{1 - a})}$

Step 2

Apply the distributive property.

$\frac{(1 + a) a (1 - a) \frac{a}{1 + a} + (1 + a) a (1 - a) \frac{1 - a}{a}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3

Simplify by cancelling.

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Step 3.1

Cancel the common factor of $1 + a$ .

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Step 3.1.1

Factor $1 + a$ out of $(1 + a) a (1 - a)$ .

$\frac{(1 + a) (a (1 - a)) \frac{a}{1 + a} + (1 + a) a (1 - a) \frac{1 - a}{a}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.1.2

Cancel the common factor.

$\frac{(1 + a) (a (1 - a)) \frac{a}{1 + a} + (1 + a) a (1 - a) \frac{1 - a}{a}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.1.3

Rewrite the expression.

$\frac{a (1 - a) a + (1 + a) a (1 - a) \frac{1 - a}{a}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.2

Raise $a$ to the power of $1$ .

$\frac{a^{1} a (1 - a) + (1 + a) a (1 - a) \frac{1 - a}{a}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.3

Raise $a$ to the power of $1$ .

$\frac{a^{1} a^{1} (1 - a) + (1 + a) a (1 - a) \frac{1 - a}{a}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{a^{1 + 1} (1 - a) + (1 + a) a (1 - a) \frac{1 - a}{a}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.5

Add $1$ and $1$ .

$\frac{a^{2} (1 - a) + (1 + a) a (1 - a) \frac{1 - a}{a}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.6

Cancel the common factor of $a$ .

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Step 3.6.1

Factor $a$ out of $(1 + a) a (1 - a)$ .

$\frac{a^{2} (1 - a) + a ((1 + a) (1 - a)) \frac{1 - a}{a}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.6.2

Cancel the common factor.

$\frac{a^{2} (1 - a) + a ((1 + a) (1 - a)) \frac{1 - a}{a}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.6.3

Rewrite the expression.

$\frac{a^{2} (1 - a) + (1 + a) (1 - a) (1 - a)}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.7

Raise $1 - a$ to the power of $1$ .

$\frac{a^{2} (1 - a) + (1 + a) ({(1 - a)}^{1} (1 - a))}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.8

Raise $1 - a$ to the power of $1$ .

$\frac{a^{2} (1 - a) + (1 + a) ({(1 - a)}^{1} {(1 - a)}^{1})}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.9

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{1 + 1}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.10

Add $1$ and $1$ .

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{(1 + a) a (1 - a) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.11

Cancel the common factor of $a$ .

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Step 3.11.1

Factor $a$ out of $(1 + a) a (1 - a)$ .

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{a ((1 + a) (1 - a)) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.11.2

Cancel the common factor.

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{a ((1 + a) (1 - a)) \frac{1 + a}{a} + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.11.3

Rewrite the expression.

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{(1 + a) (1 - a) (1 + a) + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.12

Raise $1 + a$ to the power of $1$ .

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{1} (1 + a) (1 - a) + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.13

Raise $1 + a$ to the power of $1$ .

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{1} {(1 + a)}^{1} (1 - a) + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.14

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{1 + 1} (1 - a) + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.15

Add $1$ and $1$ .

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{2} (1 - a) + (1 + a) a (1 - a) \frac{a}{1 - a}}$

Step 3.16

Cancel the common factor of $1 - a$ .

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Step 3.16.1

Factor $1 - a$ out of $(1 + a) a (1 - a)$ .

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{2} (1 - a) + (1 - a) ((1 + a) a) \frac{a}{1 - a}}$

Step 3.16.2

Cancel the common factor.

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{2} (1 - a) + (1 - a) ((1 + a) a) \frac{a}{1 - a}}$

Step 3.16.3

Rewrite the expression.

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{2} (1 - a) + (1 + a) a \cdot a}$

Step 3.17

Raise $a$ to the power of $1$ .

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{2} (1 - a) + (1 + a) (a^{1} a)}$

Step 3.18

Raise $a$ to the power of $1$ .

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{2} (1 - a) + (1 + a) (a^{1} a^{1})}$

Step 3.19

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{1 + 1}}$

Step 3.20

Add $1$ and $1$ .

$\frac{a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4

Simplify the numerator.

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Step 4.1

Factor $1 - a$ out of $a^{2} (1 - a) + (1 + a) {(1 - a)}^{2}$ .

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Step 4.1.1

Factor $1 - a$ out of $a^{2} (1 - a)$ .

$\frac{(1 - a) a^{2} + (1 + a) {(1 - a)}^{2}}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.1.2

Factor $1 - a$ out of $(1 + a) {(1 - a)}^{2}$ .

$\frac{(1 - a) a^{2} + (1 - a) ((1 + a) (1 - a))}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.1.3

Factor $1 - a$ out of $(1 - a) a^{2} + (1 - a) ((1 + a) (1 - a))$ .

$\frac{(1 - a) (a^{2} + (1 + a) (1 - a))}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.2

Expand $(1 + a) (1 - a)$ using the FOIL Method.

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Step 4.2.1

Apply the distributive property.

$\frac{(1 - a) (a^{2} + 1 (1 - a) + a (1 - a))}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.2.2

Apply the distributive property.

$\frac{(1 - a) (a^{2} + 1 \cdot 1 + 1 (- a) + a (1 - a))}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.2.3

Apply the distributive property.

$\frac{(1 - a) (a^{2} + 1 \cdot 1 + 1 (- a) + a \cdot 1 + a (- a))}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.3

Simplify and combine like terms.

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Step 4.3.1

Simplify each term.

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Step 4.3.1.1

Multiply $1$ by $1$ .

$\frac{(1 - a) (a^{2} + 1 + 1 (- a) + a \cdot 1 + a (- a))}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.3.1.2

Multiply $- a$ by $1$ .

$\frac{(1 - a) (a^{2} + 1 - a + a \cdot 1 + a (- a))}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.3.1.3

Multiply $a$ by $1$ .

$\frac{(1 - a) (a^{2} + 1 - a + a + a (- a))}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.3.1.4

Rewrite using the commutative property of multiplication.

$\frac{(1 - a) (a^{2} + 1 - a + a - a \cdot a)}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.3.1.5

Multiply $a$ by $a$ by adding the exponents.

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Step 4.3.1.5.1

Move $a$ .

$\frac{(1 - a) (a^{2} + 1 - a + a - (a \cdot a))}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.3.1.5.2

Multiply $a$ by $a$ .

$\frac{(1 - a) (a^{2} + 1 - a + a - a^{2})}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.3.2

Add $- a$ and $a$ .

$\frac{(1 - a) (a^{2} + 1 + 0 - a^{2})}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.3.3

Add $1$ and $0$ .

$\frac{(1 - a) (a^{2} + 1 - a^{2})}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.4

Subtract $a^{2}$ from $a^{2}$ .

$\frac{(1 - a) (0 + 1)}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 4.5

Add $0$ and $1$ .

$\frac{(1 - a) \cdot 1}{{(1 + a)}^{2} (1 - a) + (1 + a) a^{2}}$

Step 5

Simplify the denominator.

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Step 5.1

Factor $1 + a$ out of ${(1 + a)}^{2} (1 - a) + (1 + a) a^{2}$ .

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Step 5.1.1

Factor $1 + a$ out of ${(1 + a)}^{2} (1 - a)$ .

$\frac{(1 - a) \cdot 1}{(1 + a) ((1 + a) (1 - a)) + (1 + a) a^{2}}$

Step 5.1.2

Factor $1 + a$ out of $(1 + a) a^{2}$ .

$\frac{(1 - a) \cdot 1}{(1 + a) ((1 + a) (1 - a)) + (1 + a) (a^{2})}$

Step 5.1.3

Factor $1 + a$ out of $(1 + a) ((1 + a) (1 - a)) + (1 + a) (a^{2})$ .

$\frac{(1 - a) \cdot 1}{(1 + a) ((1 + a) (1 - a) + a^{2})}$

Step 5.2

Expand $(1 + a) (1 - a)$ using the FOIL Method.

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Step 5.2.1

Apply the distributive property.

$\frac{(1 - a) \cdot 1}{(1 + a) (1 (1 - a) + a (1 - a) + a^{2})}$

Step 5.2.2

Apply the distributive property.

$\frac{(1 - a) \cdot 1}{(1 + a) (1 \cdot 1 + 1 (- a) + a (1 - a) + a^{2})}$

Step 5.2.3

Apply the distributive property.

$\frac{(1 - a) \cdot 1}{(1 + a) (1 \cdot 1 + 1 (- a) + a \cdot 1 + a (- a) + a^{2})}$

Step 5.3

Simplify and combine like terms.

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Step 5.3.1

Simplify each term.

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Step 5.3.1.1

Multiply $1$ by $1$ .

$\frac{(1 - a) \cdot 1}{(1 + a) (1 + 1 (- a) + a \cdot 1 + a (- a) + a^{2})}$

Step 5.3.1.2

Multiply $- a$ by $1$ .

$\frac{(1 - a) \cdot 1}{(1 + a) (1 - a + a \cdot 1 + a (- a) + a^{2})}$

Step 5.3.1.3

Multiply $a$ by $1$ .

$\frac{(1 - a) \cdot 1}{(1 + a) (1 - a + a + a (- a) + a^{2})}$

Step 5.3.1.4

Rewrite using the commutative property of multiplication.

$\frac{(1 - a) \cdot 1}{(1 + a) (1 - a + a - a \cdot a + a^{2})}$

Step 5.3.1.5

Multiply $a$ by $a$ by adding the exponents.

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Step 5.3.1.5.1

Move $a$ .

$\frac{(1 - a) \cdot 1}{(1 + a) (1 - a + a - (a \cdot a) + a^{2})}$

Step 5.3.1.5.2

Multiply $a$ by $a$ .

$\frac{(1 - a) \cdot 1}{(1 + a) (1 - a + a - a^{2} + a^{2})}$

Step 5.3.2

Add $- a$ and $a$ .

$\frac{(1 - a) \cdot 1}{(1 + a) (1 + 0 - a^{2} + a^{2})}$

Step 5.3.3

Add $1$ and $0$ .

$\frac{(1 - a) \cdot 1}{(1 + a) (1 - a^{2} + a^{2})}$

Step 5.4

Add $- a^{2}$ and $a^{2}$ .

$\frac{(1 - a) \cdot 1}{(1 + a) (1 + 0)}$

Step 5.5

Add $1$ and $0$ .

$\frac{(1 - a) \cdot 1}{(1 + a) \cdot 1}$

Step 6

Simplify.

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Step 6.1

Multiply $1 - a$ by $1$ .

$\frac{1 - a}{(1 + a) \cdot 1}$

Step 6.2

Multiply $1 + a$ by $1$ .

$\frac{1 - a}{1 + a}$