Solve 21/15+8/3=

$$\frac { 21 } { 15 } + \frac { 8 } { 3 } =$$

Evaluate

$$\frac{61}{15}\approx 4.066666667$$

Solution Steps

Reduce the fraction \frac{21}{15} to lowest terms by extracting and canceling out 3.

$$\frac{7}{5}+\frac{8}{3}$$

Least common multiple of 5 and 3 is 15. Convert \frac{7}{5} and \frac{8}{3} to fractions with denominator 15.

$$\frac{21}{15}+\frac{40}{15}$$

Since \frac{21}{15} and \frac{40}{15} have the same denominator, add them by adding their numerators.

$$\frac{21+40}{15}$$

Add 21 and 40 to get 61.

$$\frac{61}{15}$$

Factor

$$\frac{61}{3 \cdot 5} = 4\frac{1}{15} = 4.066666666666666$$