How do you solve 7\frac { 3} { 7}+ 5\frac { 2} { 3}?

1 Answer
Mar 18, 2018

See a solution process below:

Explanation:

First, rewrite the expression as:

(7 + 3/7) + (5 + 2/3) =>

7 + 3/7 + 5 + 2/3 =>

7 + 5 + 3/7 + 2/3 =>

12 + 3/7 + 2/3

To add the fractions we must put them over a common denominator by multiplying each fraction by the appropriate form of 1:

12 + (3/3 xx 3/7) + (7/7 xx 2/3) =>

12 + (3 xx 3)/(3 xx 7) + (7 xx 2)/(7 xx 3) =>

12 + 9/21 + 14/21 =>

12 + (9 + 14)/21 =>

12 + 23/21

Now, we can convert the improper fraction to a mixed number:

12 + (21 + 2)/21 =>

12 + 21/21 + 2/21 =>

12 + 1 + 2/21 =>

13 + 2/21 =>

13 2/21