Solve -2/5-1/10

$$- \frac { 2 } { 5 } - \frac { 1 } { 10 }$$

Evaluate

$$-\frac{1}{2}=-0.5$$

Solution Steps

Least common multiple of 5 and 10 is 10. Convert -\frac{2}{5} and \frac{1}{10} to fractions with denominator 10.

$$-\frac{4}{10}-\frac{1}{10}$$

Since -\frac{4}{10} and \frac{1}{10} have the same denominator, subtract them by subtracting their numerators.

$$\frac{-4-1}{10}$$

Subtract 1 from -4 to get -5.

$$\frac{-5}{10}$$

Reduce the fraction \frac{-5}{10} to lowest terms by extracting and canceling out 5.

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

Factor

$$-\frac{1}{2} = -0.5$$