Pre-Algebra Examples

$- \frac{3}{16} + (- \frac{7}{16})$

Step 1

Remove parentheses.

$- \frac{3}{16} - \frac{7}{16}$

Step 2

Combine the numerators over the common denominator.

$\frac{- 3 - 7}{16}$

Step 3

Subtract $7$ from $- 3$ .

$\frac{- 10}{16}$

Step 4

Cancel the common factor of $- 10$ and $16$ .

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Step 4.1

Factor $2$ out of $- 10$ .

$\frac{2 (- 5)}{16}$

Step 4.2

Cancel the common factors.

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Step 4.2.1

Factor $2$ out of $16$ .

$\frac{2 \cdot - 5}{2 \cdot 8}$

Step 4.2.2

Cancel the common factor.

$\frac{2 \cdot - 5}{2 \cdot 8}$

Step 4.2.3

Rewrite the expression.

$\frac{- 5}{8}$

$\frac{- 5}{8}$

$\frac{- 5}{8}$

Step 5

Move the negative in front of the fraction.

$- \frac{5}{8}$

Step 6

The result can be shown in multiple forms.

Exact Form:

$- \frac{5}{8}$

Decimal Form:

$- 0.625$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$