Basic Math Examples

$\frac{13}{18} + \frac{7}{- 18}$

Step 1

Move the negative in front of the fraction.

$\frac{13}{18} - \frac{7}{18}$

Step 2

Combine the numerators over the common denominator.

$\frac{13 - 7}{18}$

Step 3

Subtract $7$ from $13$ .

$\frac{6}{18}$

Step 4

Cancel the common factor of $6$ and $18$ .

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Step 4.1

Factor $6$ out of $6$ .

$\frac{6 (1)}{18}$

Step 4.2

Cancel the common factors.

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Step 4.2.1

Factor $6$ out of $18$ .

$\frac{6 \cdot 1}{6 \cdot 3}$

Step 4.2.2

Cancel the common factor.

$\frac{6 \cdot 1}{6 \cdot 3}$

Step 4.2.3

Rewrite the expression.

$\frac{1}{3}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$\frac{1}{3}$

Decimal Form:

$0.\overline{3}$