Solve 15/6-9/4

$$1 \frac { 5 } { 6 } - \frac { 9 } { 4 }$$

Evaluate

$$-\frac{5}{12}\approx -0.416666667$$

Solution Steps

Multiply 1 and 6 to get 6.

$$\frac{6+5}{6}-\frac{9}{4}$$

Add 6 and 5 to get 11.

$$\frac{11}{6}-\frac{9}{4}$$

Least common multiple of 6 and 4 is 12. Convert \frac{11}{6} and \frac{9}{4} to fractions with denominator 12.

$$\frac{22}{12}-\frac{27}{12}$$

Since \frac{22}{12} and \frac{27}{12} have the same denominator, subtract them by subtracting their numerators.

$$\frac{22-27}{12}$$

Subtract 27 from 22 to get -5.

$$-\frac{5}{12}$$

Factor

$$-\frac{5}{12} = -0.4166666666666667$$