Solve 1/1-90/5*3/8

$$\frac { 1 } { 1 } - \frac { 90 } { 5 } \cdot \frac { 3 } { 8 }$$

Evaluate

$$-\frac{23}{4}=-5.75$$

Solution Steps

Divide 1 by 1 to get 1.

$$1-\frac{90}{5}\times \frac{3}{8}$$

Divide 90 by 5 to get 18.

$$1-18\times \frac{3}{8}$$

Express 18\times \frac{3}{8} as a single fraction.

$$1-\frac{18\times 3}{8}$$

Multiply 18 and 3 to get 54.

$$1-\frac{54}{8}$$

Reduce the fraction \frac{54}{8} to lowest terms by extracting and canceling out 2.

$$1-\frac{27}{4}$$

Convert 1 to fraction \frac{4}{4}.

$$\frac{4}{4}-\frac{27}{4}$$

Since \frac{4}{4} and \frac{27}{4} have the same denominator, subtract them by subtracting their numerators.

$$\frac{4-27}{4}$$

Subtract 27 from 4 to get -23.

$$-\frac{23}{4}$$

Factor

$$-\frac{23}{4} = -5\frac{3}{4} = -5.75$$