Solve 7/9-1/12

$$\frac { 7 } { 9 } - \frac { 1 } { 12 }$$

Evaluate

$$\frac{25}{36}\approx 0.694444444$$

Solution Steps

Least common multiple of 9 and 12 is 36. Convert \frac{7}{9} and \frac{1}{12} to fractions with denominator 36.

$$\frac{28}{36}-\frac{3}{36}$$

Since \frac{28}{36} and \frac{3}{36} have the same denominator, subtract them by subtracting their numerators.

$$\frac{28-3}{36}$$

Subtract 3 from 28 to get 25.

$$\frac{25}{36}$$

Factor

$$\frac{5 ^ {2}}{2 ^ {2} \cdot 3 ^ {2}} = 0.6944444444444444$$