Solve 31/5-42/5

$$3 \frac { 1 } { 5 } - 4 \frac { 2 } { 5 }$$

Evaluate

$$-\frac{6}{5}=-1.2$$

Solution Steps

Multiply 3 and 5 to get 15.

$$\frac{15+1}{5}-\frac{4\times 5+2}{5}$$

Add 15 and 1 to get 16.

$$\frac{16}{5}-\frac{4\times 5+2}{5}$$

Multiply 4 and 5 to get 20.

$$\frac{16}{5}-\frac{20+2}{5}$$

Add 20 and 2 to get 22.

$$\frac{16}{5}-\frac{22}{5}$$

Since \frac{16}{5} and \frac{22}{5} have the same denominator, subtract them by subtracting their numerators.

$$\frac{16-22}{5}$$

Subtract 22 from 16 to get -6.

$$-\frac{6}{5}$$

Factor

$$-\frac{6}{5} = -1\frac{1}{5} = -1.2$$