Solve 3/7-2/4

$$\frac { 3 } { 7 } - \frac { 2 } { 4 }$$

Evaluate

$$-\frac{1}{14}\approx -0.071428571$$

Solution Steps

Reduce the fraction \frac{2}{4} to lowest terms by extracting and canceling out 2.

$$\frac{3}{7}-\frac{1}{2}$$

Least common multiple of 7 and 2 is 14. Convert \frac{3}{7} and \frac{1}{2} to fractions with denominator 14.

$$\frac{6}{14}-\frac{7}{14}$$

Since \frac{6}{14} and \frac{7}{14} have the same denominator, subtract them by subtracting their numerators.

$$\frac{6-7}{14}$$

Subtract 7 from 6 to get -1.

$$-\frac{1}{14}$$

Factor

$$-\frac{1}{14} = -0.07142857142857142$$