Pre-Algebra Examples

$\frac{4}{5} + \frac{2}{10}$

Step 1

Cancel the common factor of $2$ and $10$ .

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Step 1.1

Factor $2$ out of $2$ .

$\frac{4}{5} + \frac{2 (1)}{10}$

Step 1.2

Cancel the common factors.

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Step 1.2.1

Factor $2$ out of $10$ .

$\frac{4}{5} + \frac{2 \cdot 1}{2 \cdot 5}$

Step 1.2.2

Cancel the common factor.

$\frac{4}{5} + \frac{2 \cdot 1}{2 \cdot 5}$

Step 1.2.3

Rewrite the expression.

$\frac{4}{5} + \frac{1}{5}$

Step 2

Combine the numerators over the common denominator.

$\frac{4 + 1}{5}$

Step 3

Simplify the expression.

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Step 3.1

Add $4$ and $1$ .

$\frac{5}{5}$

Step 3.2

Divide $5$ by $5$ .

$1$