Basic Math Examples

20

$20$ to

90

$90$

Step 1

Convert the ratio to a fraction by making the left side of the ratio the numerator and the right side the denominator.

\frac{20}{90}

$\frac{20}{90}$

Step 2

Cancel the common factor of

20

$20$ and

90

$90$ .

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Step 2.1

Factor

10

$10$ out of

20

$20$ .

\frac{10 (2)}{90}

$\frac{10 (2)}{90}$

Step 2.2

Cancel the common factors.

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Step 2.2.1

Factor

10

$10$ out of

90

$90$ .

\frac{10 \cdot 2}{10 \cdot 9}

$\frac{10 \cdot 2}{10 \cdot 9}$

Step 2.2.2

Cancel the common factor.

$\frac{10 \cdot 2}{10 \cdot 9}$

Step 2.2.3

Rewrite the expression.

$\frac{2}{9}$