Basic Math Examples

\frac{1}{10} - \frac{3}{40}

$\frac{1}{10} - \frac{3}{40}$

Step 1

To write

\frac{1}{10}

$\frac{1}{10}$ as a fraction with a common denominator, multiply by

\frac{4}{4}

$\frac{4}{4}$ .

\frac{1}{10} \cdot \frac{4}{4} - \frac{3}{40}

$\frac{1}{10} \cdot \frac{4}{4} - \frac{3}{40}$

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}{10}

$\frac{1}{10}$ by

\frac{4}{4}

$\frac{4}{4}$ .

\frac{4}{10 \cdot 4} - \frac{3}{40}

$\frac{4}{10 \cdot 4} - \frac{3}{40}$

Step 2.2

Multiply

10

$10$ by

4

$4$ .

\frac{4}{40} - \frac{3}{40}

$\frac{4}{40} - \frac{3}{40}$

\frac{4}{40} - \frac{3}{40}

$\frac{4}{40} - \frac{3}{40}$

Step 3

Combine the numerators over the common denominator.

\frac{4 - 3}{40}

$\frac{4 - 3}{40}$

Step 4

Subtract

3

$3$ from

4

$4$ .

\frac{1}{40}

$\frac{1}{40}$

Step 5

The result can be shown in multiple forms.

Exact Form:

\frac{1}{40}

$\frac{1}{40}$

Decimal Form:

0.025

$0.025$