Basic Math Examples

45 : 12

$45 : 12$

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{45}{12}

$\frac{45}{12}$

Step 2

Cancel the common factor of

45

$45$ and

12

$12$ .

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Step 2.1

Factor

3

$3$ out of

45

$45$ .

\frac{3 (15)}{12}

$\frac{3 (15)}{12}$

Step 2.2

Cancel the common factors.

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Step 2.2.1

Factor

3

$3$ out of

12

$12$ .

\frac{3 \cdot 15}{3 \cdot 4}

$\frac{3 \cdot 15}{3 \cdot 4}$

Step 2.2.2

Cancel the common factor.

$\frac{3 \cdot 15}{3 \cdot 4}$

Step 2.2.3

Rewrite the expression.

$\frac{15}{4}$