Basic Math Examples

\frac{1}{8} + \frac{1}{40}

$\frac{1}{8} + \frac{1}{40}$

Step 1

To write

\frac{1}{8}

$\frac{1}{8}$ as a fraction with a common denominator, multiply by

\frac{5}{5}

$\frac{5}{5}$ .

\frac{1}{8} \cdot \frac{5}{5} + \frac{1}{40}

$\frac{1}{8} \cdot \frac{5}{5} + \frac{1}{40}$

Step 2

Write each expression with a common denominator of

40

$40$ , by multiplying each by an appropriate factor of

1

$1$ .

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Step 2.1

Multiply

\frac{1}{8}

$\frac{1}{8}$ by

\frac{5}{5}

$\frac{5}{5}$ .

\frac{5}{8 \cdot 5} + \frac{1}{40}

$\frac{5}{8 \cdot 5} + \frac{1}{40}$

Step 2.2

Multiply

8

$8$ by

5

$5$ .

\frac{5}{40} + \frac{1}{40}

$\frac{5}{40} + \frac{1}{40}$

\frac{5}{40} + \frac{1}{40}

$\frac{5}{40} + \frac{1}{40}$

Step 3

Simplify the expression.

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Step 3.1

Combine the numerators over the common denominator.

\frac{5 + 1}{40}

$\frac{5 + 1}{40}$

Step 3.2

Add

5

$5$ and

1

$1$ .

\frac{6}{40}

$\frac{6}{40}$

\frac{6}{40}

$\frac{6}{40}$

Step 4

Cancel the common factor of

6

$6$ and

40

$40$ .

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Step 4.1

Factor

2

$2$ out of

6

$6$ .

\frac{2 (3)}{40}

$\frac{2 (3)}{40}$

Step 4.2

Cancel the common factors.

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Step 4.2.1

Factor

2

$2$ out of

40

$40$ .

\frac{2 \cdot 3}{2 \cdot 20}

$\frac{2 \cdot 3}{2 \cdot 20}$

Step 4.2.2

Cancel the common factor.

$\frac{2 \cdot 3}{2 \cdot 20}$

Step 4.2.3

Rewrite the expression.

$\frac{3}{20}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$\frac{3}{20}$

Decimal Form:

$0.15$