Solve =1-90/990

$$= 1 - \frac { 90 } { 990 }$$

Evaluate

$$\frac{10}{11}\approx 0.909090909$$

Solution Steps

Reduce the fraction \frac{90}{990} to lowest terms by extracting and canceling out 90.

$$1-\frac{1}{11}$$

Convert 1 to fraction \frac{11}{11}.

$$\frac{11}{11}-\frac{1}{11}$$

Since \frac{11}{11} and \frac{1}{11} have the same denominator, subtract them by subtracting their numerators.

$$\frac{11-1}{11}$$

Subtract 1 from 11 to get 10.

$$\frac{10}{11}$$

Factor

$$\frac{2 \cdot 5}{11} = 0.9090909090909091$$