Question

What is the answer to this math problem

Answer 1

`1(7)/(10)+3(13)/(20)`

Method 1.

Find LCM of denominators:

LCM(10, 20) = 20

`1(7\cdot2)/(10\cdot2)+3(13)/(20)=1(14)/(20)+3(13)/(20)=(1+3)+\left((14+13)/(20)\right)=4(27)/(20)=4(20+7)/(20)=5(7)/(20)`

Method 2.

Convert mixed numbers to decimal:

`1(7)/(10)=1.7\\\\3(13)/(20)=3(13\cdot5)/(20\cdot5)=3(65)/(100)=3.65\\\\1(7)/(10)+3(13)/(20)=1.7+3.65=5.35`

Answer 2

Hope this helps you..!!!