Solve 13/4-1/5

$$1 \frac { 3 } { 4 } - \frac { 1 } { 5 }$$

Evaluate

$$\frac{31}{20}=1.55$$

Solution Steps

Multiply 1 and 4 to get 4.

$$\frac{4+3}{4}-\frac{1}{5}$$

Add 4 and 3 to get 7.

$$\frac{7}{4}-\frac{1}{5}$$

Least common multiple of 4 and 5 is 20. Convert \frac{7}{4} and \frac{1}{5} to fractions with denominator 20.

$$\frac{35}{20}-\frac{4}{20}$$

Since \frac{35}{20} and \frac{4}{20} have the same denominator, subtract them by subtracting their numerators.

$$\frac{35-4}{20}$$

Subtract 4 from 35 to get 31.

$$\frac{31}{20}$$

Factor

$$\frac{31}{2 ^ {2} \cdot 5} = 1\frac{11}{20} = 1.55$$