Solve 73/5-1/20

$$7 \frac { 3 } { 5 } - \frac { 1 } { 20 }$$

Evaluate

$$\frac{151}{20}=7.55$$

Solution Steps

Multiply 7 and 5 to get 35.

$$\frac{35+3}{5}-\frac{1}{20}$$

Add 35 and 3 to get 38.

$$\frac{38}{5}-\frac{1}{20}$$

Least common multiple of 5 and 20 is 20. Convert \frac{38}{5} and \frac{1}{20} to fractions with denominator 20.

$$\frac{152}{20}-\frac{1}{20}$$

Since \frac{152}{20} and \frac{1}{20} have the same denominator, subtract them by subtracting their numerators.

$$\frac{152-1}{20}$$

Subtract 1 from 152 to get 151.

$$\frac{151}{20}$$

Factor

$$\frac{151}{2 ^ {2} \cdot 5} = 7\frac{11}{20} = 7.55$$