Pre-Algebra Examples

$(\frac{2}{3} y^{3} + \frac{3}{4} y^{2} + \frac{1}{2}) + (\frac{1}{3} y^{3} + \frac{1}{5} y^{2} - \frac{1}{6})$

Step 1

Remove parentheses.

$\frac{2}{3} y^{3} + \frac{3}{4} y^{2} + \frac{1}{2} + \frac{1}{3} y^{3} + \frac{1}{5} y^{2} - \frac{1}{6}$

Step 2

Simplify each term.

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Step 2.1

Combine $\frac{2}{3}$ and $y^{3}$ .

$\frac{2 y^{3}}{3} + \frac{3}{4} y^{2} + \frac{1}{2} + \frac{1}{3} y^{3} + \frac{1}{5} y^{2} - \frac{1}{6}$

Step 2.2

Combine $\frac{3}{4}$ and $y^{2}$ .

$\frac{2 y^{3}}{3} + \frac{3 y^{2}}{4} + \frac{1}{2} + \frac{1}{3} y^{3} + \frac{1}{5} y^{2} - \frac{1}{6}$

Step 2.3

Combine $\frac{1}{3}$ and $y^{3}$ .

$\frac{2 y^{3}}{3} + \frac{3 y^{2}}{4} + \frac{1}{2} + \frac{y^{3}}{3} + \frac{1}{5} y^{2} - \frac{1}{6}$

Step 2.4

Combine $\frac{1}{5}$ and $y^{2}$ .

$\frac{2 y^{3}}{3} + \frac{3 y^{2}}{4} + \frac{1}{2} + \frac{y^{3}}{3} + \frac{y^{2}}{5} - \frac{1}{6}$

Step 3

Simplify terms.

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Step 3.1

Combine the numerators over the common denominator.

$\frac{2 y^{3} + y^{3}}{3} + \frac{3 y^{2}}{4} + \frac{1}{2} + \frac{y^{2}}{5} + \frac{- 1}{6}$

Step 3.2

Add $2 y^{3}$ and $y^{3}$ .

$\frac{3 y^{3}}{3} + \frac{3 y^{2}}{4} + \frac{1}{2} + \frac{y^{2}}{5} + \frac{- 1}{6}$

Step 4

Simplify each term.

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Step 4.1

Cancel the common factor of $3$ .

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Step 4.1.1

Cancel the common factor.

$\frac{3 y^{3}}{3} + \frac{3 y^{2}}{4} + \frac{1}{2} + \frac{y^{2}}{5} + \frac{- 1}{6}$

Step 4.1.2

Divide $y^{3}$ by $1$ .

$y^{3} + \frac{3 y^{2}}{4} + \frac{1}{2} + \frac{y^{2}}{5} + \frac{- 1}{6}$

Step 4.2

Move the negative in front of the fraction.

$y^{3} + \frac{3 y^{2}}{4} + \frac{1}{2} + \frac{y^{2}}{5} - \frac{1}{6}$

Step 5

To write $\frac{3 y^{2}}{4}$ as a fraction with a common denominator, multiply by $\frac{5}{5}$ .

$y^{3} + \frac{3 y^{2}}{4} \cdot \frac{5}{5} + \frac{y^{2}}{5} + \frac{1}{2} - \frac{1}{6}$

Step 6

To write $\frac{y^{2}}{5}$ as a fraction with a common denominator, multiply by $\frac{4}{4}$ .

$y^{3} + \frac{3 y^{2}}{4} \cdot \frac{5}{5} + \frac{y^{2}}{5} \cdot \frac{4}{4} + \frac{1}{2} - \frac{1}{6}$

Step 7

Write each expression with a common denominator of $20$ , by multiplying each by an appropriate factor of $1$ .

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Step 7.1

Multiply $\frac{3 y^{2}}{4}$ by $\frac{5}{5}$ .

$y^{3} + \frac{3 y^{2} \cdot 5}{4 \cdot 5} + \frac{y^{2}}{5} \cdot \frac{4}{4} + \frac{1}{2} - \frac{1}{6}$

Step 7.2

Multiply $4$ by $5$ .

$y^{3} + \frac{3 y^{2} \cdot 5}{20} + \frac{y^{2}}{5} \cdot \frac{4}{4} + \frac{1}{2} - \frac{1}{6}$

Step 7.3

Multiply $\frac{y^{2}}{5}$ by $\frac{4}{4}$ .

$y^{3} + \frac{3 y^{2} \cdot 5}{20} + \frac{y^{2} \cdot 4}{5 \cdot 4} + \frac{1}{2} - \frac{1}{6}$

Step 7.4

Multiply $5$ by $4$ .

$y^{3} + \frac{3 y^{2} \cdot 5}{20} + \frac{y^{2} \cdot 4}{20} + \frac{1}{2} - \frac{1}{6}$

Step 8

Combine the numerators over the common denominator.

$y^{3} + \frac{3 y^{2} \cdot 5 + y^{2} \cdot 4}{20} + \frac{1}{2} - \frac{1}{6}$

Step 9

Find the common denominator.

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Step 9.1

Write $y^{3}$ as a fraction with denominator $1$ .

$\frac{y^{3}}{1} + \frac{3 y^{2} \cdot 5 + y^{2} \cdot 4}{20} + \frac{1}{2} - \frac{1}{6}$

Step 9.2

Multiply $\frac{y^{3}}{1}$ by $\frac{60}{60}$ .

$\frac{y^{3}}{1} \cdot \frac{60}{60} + \frac{3 y^{2} \cdot 5 + y^{2} \cdot 4}{20} + \frac{1}{2} - \frac{1}{6}$

Step 9.3

Multiply $\frac{y^{3}}{1}$ by $\frac{60}{60}$ .

$\frac{y^{3} \cdot 60}{60} + \frac{3 y^{2} \cdot 5 + y^{2} \cdot 4}{20} + \frac{1}{2} - \frac{1}{6}$

Step 9.4

Multiply $\frac{3 y^{2} \cdot 5 + y^{2} \cdot 4}{20}$ by $\frac{3}{3}$ .

$\frac{y^{3} \cdot 60}{60} + \frac{3 y^{2} \cdot 5 + y^{2} \cdot 4}{20} \cdot \frac{3}{3} + \frac{1}{2} - \frac{1}{6}$

Step 9.5

Multiply $\frac{3 y^{2} \cdot 5 + y^{2} \cdot 4}{20}$ by $\frac{3}{3}$ .

$\frac{y^{3} \cdot 60}{60} + \frac{(3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3}{20 \cdot 3} + \frac{1}{2} - \frac{1}{6}$

Step 9.6

Multiply $\frac{1}{2}$ by $\frac{30}{30}$ .

$\frac{y^{3} \cdot 60}{60} + \frac{(3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3}{20 \cdot 3} + \frac{1}{2} \cdot \frac{30}{30} - \frac{1}{6}$

Step 9.7

Multiply $\frac{1}{2}$ by $\frac{30}{30}$ .

$\frac{y^{3} \cdot 60}{60} + \frac{(3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3}{20 \cdot 3} + \frac{30}{2 \cdot 30} - \frac{1}{6}$

Step 9.8

Multiply $\frac{1}{6}$ by $\frac{10}{10}$ .

$\frac{y^{3} \cdot 60}{60} + \frac{(3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3}{20 \cdot 3} + \frac{30}{2 \cdot 30} - (\frac{1}{6} \cdot \frac{10}{10})$

Step 9.9

Multiply $\frac{1}{6}$ by $\frac{10}{10}$ .

$\frac{y^{3} \cdot 60}{60} + \frac{(3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3}{20 \cdot 3} + \frac{30}{2 \cdot 30} - \frac{10}{6 \cdot 10}$

Step 9.10

Reorder the factors of $20 \cdot 3$ .

$\frac{y^{3} \cdot 60}{60} + \frac{(3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3}{3 \cdot 20} + \frac{30}{2 \cdot 30} - \frac{10}{6 \cdot 10}$

Step 9.11

Multiply $3$ by $20$ .

$\frac{y^{3} \cdot 60}{60} + \frac{(3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3}{60} + \frac{30}{2 \cdot 30} - \frac{10}{6 \cdot 10}$

Step 9.12

Multiply $2$ by $30$ .

$\frac{y^{3} \cdot 60}{60} + \frac{(3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3}{60} + \frac{30}{60} - \frac{10}{6 \cdot 10}$

Step 9.13

Multiply $6$ by $10$ .

$\frac{y^{3} \cdot 60}{60} + \frac{(3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3}{60} + \frac{30}{60} - \frac{10}{60}$

Step 10

Combine the numerators over the common denominator.

$\frac{y^{3} \cdot 60 + (3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3 + 30 - 10}{60}$

Step 11

Simplify each term.

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Step 11.1

Move $60$ to the left of $y^{3}$ .

$\frac{60 \cdot y^{3} + (3 y^{2} \cdot 5 + y^{2} \cdot 4) \cdot 3 + 30 - 10}{60}$

Step 11.2

Simplify each term.

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Step 11.2.1

Multiply $5$ by $3$ .

$\frac{60 y^{3} + (15 y^{2} + y^{2} \cdot 4) \cdot 3 + 30 - 10}{60}$

Step 11.2.2

Move $4$ to the left of $y^{2}$ .

$\frac{60 y^{3} + (15 y^{2} + 4 y^{2}) \cdot 3 + 30 - 10}{60}$

Step 11.3

Add $15 y^{2}$ and $4 y^{2}$ .

$\frac{60 y^{3} + 19 y^{2} \cdot 3 + 30 - 10}{60}$

Step 11.4

Multiply $3$ by $19$ .

$\frac{60 y^{3} + 57 y^{2} + 30 - 10}{60}$

Step 12

Subtract $10$ from $30$ .

$\frac{60 y^{3} + 57 y^{2} + 20}{60}$