Solve -3/5-27/10=

$$- \frac { 3 } { 5 } - 2 \frac { 7 } { 10 } =$$

Evaluate

$$-\frac{33}{10}=-3.3$$

Solution Steps

Multiply 2 and 10 to get 20.

$$-\frac{3}{5}-\frac{20+7}{10}$$

Add 20 and 7 to get 27.

$$-\frac{3}{5}-\frac{27}{10}$$

Least common multiple of 5 and 10 is 10. Convert -\frac{3}{5} and \frac{27}{10} to fractions with denominator 10.

$$-\frac{6}{10}-\frac{27}{10}$$

Since -\frac{6}{10} and \frac{27}{10} have the same denominator, subtract them by subtracting their numerators.

$$\frac{-6-27}{10}$$

Subtract 27 from -6 to get -33.

$$-\frac{33}{10}$$

Factor

$$-\frac{33}{10} = -3\frac{3}{10} = -3.3$$