Basic Math Examples

$- \frac{8}{13} - \frac{8}{39}$

Step 1

To write $- \frac{8}{13}$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$- \frac{8}{13} \cdot \frac{3}{3} - \frac{8}{39}$

Step 2

Write each expression with a common denominator of $39$ , by multiplying each by an appropriate factor of $1$ .

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Step 2.1

Multiply $\frac{8}{13}$ by $\frac{3}{3}$ .

$- \frac{8 \cdot 3}{13 \cdot 3} - \frac{8}{39}$

Step 2.2

Multiply $13$ by $3$ .

$- \frac{8 \cdot 3}{39} - \frac{8}{39}$

Step 3

Combine the numerators over the common denominator.

$\frac{- 8 \cdot 3 - 8}{39}$

Step 4

Simplify the numerator.

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Step 4.1

Multiply $- 8$ by $3$ .

$\frac{- 24 - 8}{39}$

Step 4.2

Subtract $8$ from $- 24$ .

$\frac{- 32}{39}$

Step 5

Move the negative in front of the fraction.

$- \frac{32}{39}$

Step 6

The result can be shown in multiple forms.

Exact Form:

$- \frac{32}{39}$

Decimal Form:

$- 0.\overline{820512}$