Chapter 9.5, Problem 50CCR

To determine

To find the sum in simplest form.

Answer to Problem 50CCR

The sum of $\frac{7}{8}+\frac{2}{10}=1\frac{3}{40}$ .

Explanation of Solution

Given information:

The given fractions are:

  $\frac{7}{8}+\frac{2}{10}$

Calculation:

The sum can be calculated by:

  $\begin{array}{l}\frac{7}{8}+\frac{2}{10}\\ =\frac{35}{40}\text{+}\frac{8}{40}\left[\begin{array}{l}\text{Least common multiple of 8 and 10 is 40}\\ \text{Convert into like fractions}\end{array}\right]\\ =\frac{43}{40}\left[\text{Add the numerators}\right]\\ =1\frac{3}{40}\left[\text{convert into mixed fractions}\right]\end{array}$

Hence, the sum of $\frac{7}{8}+\frac{2}{10}=1\frac{3}{40}$ .