Solve 2/40+7/20-11/20=

$$\frac { 2 } { 40 } + \frac { 7 } { 20 } - \frac { 11 } { 20 } =$$

Evaluate

$$-\frac{3}{20}=-0.15$$

Solution Steps

Reduce the fraction \frac{2}{40} to lowest terms by extracting and canceling out 2.

$$\frac{1}{20}+\frac{7}{20}-\frac{11}{20}$$

Since \frac{1}{20} and \frac{7}{20} have the same denominator, add them by adding their numerators.

$$\frac{1+7}{20}-\frac{11}{20}$$

Add 1 and 7 to get 8.

$$\frac{8}{20}-\frac{11}{20}$$

Since \frac{8}{20} and \frac{11}{20} have the same denominator, subtract them by subtracting their numerators.

$$\frac{8-11}{20}$$

Subtract 11 from 8 to get -3.

$$-\frac{3}{20}$$

Factor

$$-\frac{3}{20} = -0.15$$