Solve 3/5+1/2-2

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

Evaluate

$$-\frac{9}{10}=-0.9$$

Solution Steps

Least common multiple of 5 and 2 is 10. Convert \frac{3}{5} and \frac{1}{2} to fractions with denominator 10.

$$\frac{6}{10}+\frac{5}{10}-2$$

Since \frac{6}{10} and \frac{5}{10} have the same denominator, add them by adding their numerators.

$$\frac{6+5}{10}-2$$

Add 6 and 5 to get 11.

$$\frac{11}{10}-2$$

Convert 2 to fraction \frac{20}{10}.

$$\frac{11}{10}-\frac{20}{10}$$

Since \frac{11}{10} and \frac{20}{10} have the same denominator, subtract them by subtracting their numerators.

$$\frac{11-20}{10}$$

Subtract 20 from 11 to get -9.

$$-\frac{9}{10}$$

Factor

$$-\frac{9}{10} = -0.9$$