Basic Math Examples

$\frac{7}{40} + \frac{9}{50}$

Step 1

To write

$\frac{7}{40}$ as a fraction with a common denominator, multiply by

$\frac{5}{5}$ .

$\frac{7}{40} \cdot \frac{5}{5} + \frac{9}{50}$

Step 2

To write

$\frac{9}{50}$ as a fraction with a common denominator, multiply by

$\frac{4}{4}$ .

$\frac{7}{40} \cdot \frac{5}{5} + \frac{9}{50} \cdot \frac{4}{4}$

Step 3

Write each expression with a common denominator of

$200$ , by multiplying each by an appropriate factor of

$1$ .

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Step 3.1

Multiply

$\frac{7}{40}$ by

$\frac{5}{5}$ .

$\frac{7 \cdot 5}{40 \cdot 5} + \frac{9}{50} \cdot \frac{4}{4}$

Step 3.2

Multiply

$40$ by

$5$ .

$\frac{7 \cdot 5}{200} + \frac{9}{50} \cdot \frac{4}{4}$

Step 3.3

Multiply

$\frac{9}{50}$ by

$\frac{4}{4}$ .

$\frac{7 \cdot 5}{200} + \frac{9 \cdot 4}{50 \cdot 4}$

Step 3.4

Multiply

$50$ by

$4$ .

$\frac{7 \cdot 5}{200} + \frac{9 \cdot 4}{200}$

Step 4

Combine the numerators over the common denominator.

$\frac{7 \cdot 5 + 9 \cdot 4}{200}$

Step 5

Simplify the numerator.

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Step 5.1

Multiply

$7$ by

$5$ .

$\frac{35 + 9 \cdot 4}{200}$

Step 5.2

Multiply

$9$ by

$4$ .

$\frac{35 + 36}{200}$

Step 5.3

Add

$35$ and

$36$ .

$\frac{71}{200}$

Step 6

The result can be shown in multiple forms.

Exact Form:

$\frac{71}{200}$

Decimal Form:

$0.355$