Basic Math Examples

$- \frac{3}{8} - \frac{3}{4}$

Step 1

To write $- \frac{3}{4}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$- \frac{3}{8} - \frac{3}{4} \cdot \frac{2}{2}$

Step 2

Write each expression with a common denominator of $8$ , by multiplying each by an appropriate factor of $1$ .

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Step 2.1

Multiply $\frac{3}{4}$ by $\frac{2}{2}$ .

$- \frac{3}{8} - \frac{3 \cdot 2}{4 \cdot 2}$

Step 2.2

Multiply $4$ by $2$ .

$- \frac{3}{8} - \frac{3 \cdot 2}{8}$

Step 3

Combine the numerators over the common denominator.

$\frac{- 3 - 3 \cdot 2}{8}$

Step 4

Simplify the numerator.

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Step 4.1

Multiply $- 3$ by $2$ .

$\frac{- 3 - 6}{8}$

Step 4.2

Subtract $6$ from $- 3$ .

$\frac{- 9}{8}$

Step 5

Move the negative in front of the fraction.

$- \frac{9}{8}$