Question

What is 2 3/4 + 7 3/5

Answer 1

Calculating the sum of 2 3/4 and 7 3/5, we have:

`\begin{gathered} 2(3)/(4)+7(3)/(5) \\ =2+(3)/(4)+7+(3)/(5) \\ =9+((3)/(4)+(3)/(5))_{} \\ =9+((3\cdot5+3\cdot4)/(20))_{} \\ =9+(27)/(20) \\ =9+(20)/(20)+(7)/(20) \\ =9+1+(7)/(20) \\ =10+(7)/(20) \\ =10(7)/(20) \end{gathered}`

So the result is 10 7/20.