Finite Math Examples

$\frac{2}{7} - 1$

Step 1

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{7}{7}$ .

$\frac{2}{7} - 1 \cdot \frac{7}{7}$

Step 2

Combine $- 1$ and $\frac{7}{7}$ .

$\frac{2}{7} + \frac{- 1 \cdot 7}{7}$

Step 3

Combine the numerators over the common denominator.

$\frac{2 - 1 \cdot 7}{7}$

Step 4

Simplify the numerator.

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Step 4.1

Multiply $- 1$ by $7$ .

$\frac{2 - 7}{7}$

Step 4.2

Subtract $7$ from $2$ .

$\frac{- 5}{7}$

Step 5

Move the negative in front of the fraction.

$- \frac{5}{7}$

Step 6

The result can be shown in multiple forms.

Exact Form:

$- \frac{5}{7}$

Decimal Form:

$- 0.\overline{714285}$