Evaluate -1 2/5-(-4/5)

$- 1 \frac{2}{5} - (- \frac{4}{5})$

Convert $1 \frac{2}{5}$ to an improper fraction.

A mixed number is an addition of its whole and fractional parts.

$- (1 + \frac{2}{5}) - (- \frac{4}{5})$

Add $1$ and $\frac{2}{5}$ .

Write $1$ as a fraction with a common denominator.

$- (\frac{5}{5} + \frac{2}{5}) - (- \frac{4}{5})$

Combine the numerators over the common denominator.

$- \frac{5 + 2}{5} - (- \frac{4}{5})$

Add $5$ and $2$ .

$- \frac{7}{5} - (- \frac{4}{5})$

Multiply $- (- \frac{4}{5})$ .

Multiply $- 1$ by $- 1$ .

$- \frac{7}{5} + 1 (\frac{4}{5})$

Multiply $\frac{4}{5}$ by $1$ .

$- \frac{7}{5} + \frac{4}{5}$

Combine the numerators over the common denominator.

$\frac{- 7 + 4}{5}$

Simplify the expression.

Add $- 7$ and $4$ .

$\frac{- 3}{5}$

Move the negative in front of the fraction.

$- \frac{3}{5}$

The result can be shown in multiple forms.

Exact Form:

$- \frac{3}{5}$

Decimal Form:

$- 0.6$