Solve 12/5-1/8

$$1 \frac { 2 } { 5 } - \frac { 1 } { 8 }$$

Evaluate

$$\frac{51}{40}=1.275$$

Solution Steps

Multiply 1 and 5 to get 5.

$$\frac{5+2}{5}-\frac{1}{8}$$

Add 5 and 2 to get 7.

$$\frac{7}{5}-\frac{1}{8}$$

Least common multiple of 5 and 8 is 40. Convert \frac{7}{5} and \frac{1}{8} to fractions with denominator 40.

$$\frac{56}{40}-\frac{5}{40}$$

Since \frac{56}{40} and \frac{5}{40} have the same denominator, subtract them by subtracting their numerators.

$$\frac{56-5}{40}$$

Subtract 5 from 56 to get 51.

$$\frac{51}{40}$$

Factor

$$\frac{3 \cdot 17}{2 ^ {3} \cdot 5} = 1\frac{11}{40} = 1.275$$