Solve 19/20-1/12

$$\frac{ 19 }{ 20 } - \frac{ 1 }{ 12 }$$

Evaluate

$$\frac{13}{15}\approx 0.866666667$$

Solution Steps

Least common multiple of 20 and 12 is 60. Convert \frac{19}{20} and \frac{1}{12} to fractions with denominator 60.

$$\frac{57}{60}-\frac{5}{60}$$

Since \frac{57}{60} and \frac{5}{60} have the same denominator, subtract them by subtracting their numerators.

$$\frac{57-5}{60}$$

Subtract 5 from 57 to get 52.

$$\frac{52}{60}$$

Reduce the fraction \frac{52}{60} to lowest terms by extracting and canceling out 4.

$$\frac{13}{15}$$

Factor

$$\frac{13}{3 \cdot 5} = 0.8666666666666667$$