Basic Math Examples

\frac{12}{44} = \frac{15}{a}

$\frac{12}{44} = \frac{15}{a}$

Step 1

Rewrite the equation as

\frac{15}{a} = \frac{12}{44}

$\frac{15}{a} = \frac{12}{44}$ .

\frac{15}{a} = \frac{12}{44}

$\frac{15}{a} = \frac{12}{44}$

Step 2

Cancel the common factor of

12

$12$ and

44

$44$ .

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Step 2.1

Factor

4

$4$ out of

12

$12$ .

\frac{15}{a} = \frac{4 (3)}{44}

$\frac{15}{a} = \frac{4 (3)}{44}$

Step 2.2

Cancel the common factors.

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Step 2.2.1

Factor

4

$4$ out of

44

$44$ .

\frac{15}{a} = \frac{4 \cdot 3}{4 \cdot 11}

$\frac{15}{a} = \frac{4 \cdot 3}{4 \cdot 11}$

Step 2.2.2

Cancel the common factor.

$\frac{15}{a} = \frac{4 \cdot 3}{4 \cdot 11}$

Step 2.2.3

Rewrite the expression.

$\frac{15}{a} = \frac{3}{11}$

Step 3

Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.

$15 \cdot 11 = a \cdot 3$

Step 4

Solve the equation for

$a$ .

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Step 4.1

Rewrite the equation as

$a \cdot 3 = 15 \cdot 11$ .

$a \cdot 3 = 15 \cdot 11$

Step 4.2

Multiply

$15$ by

$11$ .

$a \cdot 3 = 165$

Step 4.3

Divide each term in

$a \cdot 3 = 165$ by

$3$ and simplify.

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Step 4.3.1

Divide each term in

$a \cdot 3 = 165$ by

$3$ .

$\frac{a \cdot 3}{3} = \frac{165}{3}$

Step 4.3.2

Simplify the left side.

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Step 4.3.2.1

Cancel the common factor of

$3$ .

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Step 4.3.2.1.1

Cancel the common factor.

$\frac{a \cdot 3}{3} = \frac{165}{3}$

Step 4.3.2.1.2

Divide

$a$ by

$1$ .

$a = \frac{165}{3}$

Step 4.3.3

Simplify the right side.

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Step 4.3.3.1

Divide

$165$ by

$3$ .

$a = 55$