Solve 31/10+3/4

$$3 \frac { 1 } { 10 } + \frac { 3 } { 4 }$$

Evaluate

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

Solution Steps

Multiply 3 and 10 to get 30.

$$\frac{30+1}{10}+\frac{3}{4}$$

Add 30 and 1 to get 31.

$$\frac{31}{10}+\frac{3}{4}$$

Least common multiple of 10 and 4 is 20. Convert \frac{31}{10} and \frac{3}{4} to fractions with denominator 20.

$$\frac{62}{20}+\frac{15}{20}$$

Since \frac{62}{20} and \frac{15}{20} have the same denominator, add them by adding their numerators.

$$\frac{62+15}{20}$$

Add 62 and 15 to get 77.

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

Factor

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