Solve 3/5+-9/10

$$\frac { 3 } { 5 } + \frac { - 9 } { 10 }$$

Evaluate

$$-\frac{3}{10}=-0.3$$

Solution Steps

Fraction \frac{-9}{10} can be rewritten as -\frac{9}{10} by extracting the negative sign.

$$\frac{3}{5}-\frac{9}{10}$$

Least common multiple of 5 and 10 is 10. Convert \frac{3}{5} and \frac{9}{10} to fractions with denominator 10.

$$\frac{6}{10}-\frac{9}{10}$$

Since \frac{6}{10} and \frac{9}{10} have the same denominator, subtract them by subtracting their numerators.

$$\frac{6-9}{10}$$

Subtract 9 from 6 to get -3.

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

Factor

$$-\frac{3}{10} = -0.3$$