Question

Find the sum or difference in simplest form 1 3/7 + 10 6/7

Answer 1

`12(2)/(7)`

Explanation:

we have

`1(3)/(7) +10(6)/(7)`

step 1

Convert mixed number to an improper fraction

`1(3)/(7)=(1*7+3)/(7)=(10)/(7)`

`10(6)/(7)=(10*7+6)/(7)=(76)/(7)`

step 2

Substitute in the expression above and find the sum

`(10)/(7)+(76)/(7)=(86)/(7)`

Convert to mixed number

`(86)/(7)=(84)/(7)+(2)/(7)=12(2)/(7)`