Solve 18/5+3/12

$$\frac { 18 } { 5 } + \frac { 3 } { 12 }$$

Evaluate

$$\frac{77}{20}=3.85$$

Solution Steps

Reduce the fraction \frac{3}{12} to lowest terms by extracting and canceling out 3.

$$\frac{18}{5}+\frac{1}{4}$$

Least common multiple of 5 and 4 is 20. Convert \frac{18}{5} and \frac{1}{4} to fractions with denominator 20.

$$\frac{72}{20}+\frac{5}{20}$$

Since \frac{72}{20} and \frac{5}{20} have the same denominator, add them by adding their numerators.

$$\frac{72+5}{20}$$

Add 72 and 5 to get 77.

$$\frac{77}{20}$$

Factor

$$\frac{7 \cdot 11}{2 ^ {2} \cdot 5} = 3\frac{17}{20} = 3.85$$