Solve 91/20-117/100

$$9 \frac{ 1 }{ 20 } - \frac{ 117 }{ 100 }$$

Evaluate

$$\frac{197}{25}=7.88$$

Solution Steps

Multiply 9 and 20 to get 180.

$$\frac{180+1}{20}-\frac{117}{100}$$

Add 180 and 1 to get 181.

$$\frac{181}{20}-\frac{117}{100}$$

Least common multiple of 20 and 100 is 100. Convert \frac{181}{20} and \frac{117}{100} to fractions with denominator 100.

$$\frac{905}{100}-\frac{117}{100}$$

Since \frac{905}{100} and \frac{117}{100} have the same denominator, subtract them by subtracting their numerators.

$$\frac{905-117}{100}$$

Subtract 117 from 905 to get 788.

$$\frac{788}{100}$$

Reduce the fraction \frac{788}{100} to lowest terms by extracting and canceling out 4.

$$\frac{197}{25}$$

Factor

$$\frac{197}{5 ^ {2}} = 7\frac{22}{25} = 7.88$$