Solve 7/14+3/21

$$\frac { 7 } { 14 } + \frac { 3 } { 21 }$$

Evaluate

$$\frac{9}{14}\approx 0.642857143$$

Solution Steps

Reduce the fraction \frac{7}{14} to lowest terms by extracting and canceling out 7.

$$\frac{1}{2}+\frac{3}{21}$$

Reduce the fraction \frac{3}{21} to lowest terms by extracting and canceling out 3.

$$\frac{1}{2}+\frac{1}{7}$$

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

$$\frac{7}{14}+\frac{2}{14}$$

Since \frac{7}{14} and \frac{2}{14} have the same denominator, add them by adding their numerators.

$$\frac{7+2}{14}$$

Add 7 and 2 to get 9.

$$\frac{9}{14}$$

Factor

$$\frac{3 ^ {2}}{2 \cdot 7} = 0.6428571428571429$$