Solve -4/10+18/100

$$- \frac { 4 } { 10 } + \frac { 18 } { 100 }$$

Evaluate

$$-\frac{11}{50}=-0.22$$

Solution Steps

Reduce the fraction \frac{4}{10} to lowest terms by extracting and canceling out 2.

$$-\frac{2}{5}+\frac{18}{100}$$

Reduce the fraction \frac{18}{100} to lowest terms by extracting and canceling out 2.

$$-\frac{2}{5}+\frac{9}{50}$$

Least common multiple of 5 and 50 is 50. Convert -\frac{2}{5} and \frac{9}{50} to fractions with denominator 50.

$$-\frac{20}{50}+\frac{9}{50}$$

Since -\frac{20}{50} and \frac{9}{50} have the same denominator, add them by adding their numerators.

$$\frac{-20+9}{50}$$

Add -20 and 9 to get -11.

$$-\frac{11}{50}$$

Factor

$$-\frac{11}{50} = -0.22$$