Solve 12/8-18/10

$$\frac { 12 } { 8 } - \frac { 18 } { 10 }$$

Evaluate

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

Solution Steps

Reduce the fraction \frac{12}{8} to lowest terms by extracting and canceling out 4.

$$\frac{3}{2}-\frac{18}{10}$$

Reduce the fraction \frac{18}{10} to lowest terms by extracting and canceling out 2.

$$\frac{3}{2}-\frac{9}{5}$$

Least common multiple of 2 and 5 is 10. Convert \frac{3}{2} and \frac{9}{5} to fractions with denominator 10.

$$\frac{15}{10}-\frac{18}{10}$$

Since \frac{15}{10} and \frac{18}{10} have the same denominator, subtract them by subtracting their numerators.

$$\frac{15-18}{10}$$

Subtract 18 from 15 to get -3.

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

Factor

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