Solve 42/5+37/10

$$4 \frac { 2 } { 5 } + 3 \frac { 7 } { 10 }$$

Evaluate

$$\frac{81}{10}=8.1$$

Solution Steps

Multiply 4 and 5 to get 20.

$$\frac{20+2}{5}+\frac{3\times 10+7}{10}$$

Add 20 and 2 to get 22.

$$\frac{22}{5}+\frac{3\times 10+7}{10}$$

Multiply 3 and 10 to get 30.

$$\frac{22}{5}+\frac{30+7}{10}$$

Add 30 and 7 to get 37.

$$\frac{22}{5}+\frac{37}{10}$$

Least common multiple of 5 and 10 is 10. Convert \frac{22}{5} and \frac{37}{10} to fractions with denominator 10.

$$\frac{44}{10}+\frac{37}{10}$$

Since \frac{44}{10} and \frac{37}{10} have the same denominator, add them by adding their numerators.

$$\frac{44+37}{10}$$

Add 44 and 37 to get 81.

$$\frac{81}{10}$$

Factor

$$\frac{3 ^ {4}}{2 \cdot 5} = 8\frac{1}{10} = 8.1$$