Question

Select all expressions that have a sum or difference ofОА1+IN2leОВ.1112-16OCcalco3+20D78-loo12O E + 1ĶNana

Answer 1

`B,C,E`

1) Let's check which one has the sum or difference:

`\begin{gathered} B)(11)/(12)-(1)/(6)=(11-2)/(12)_{}=(9)/(12)=(3)/(4) \\ C)(3)/(5)+(3)/(20)=(12+3)/(20)=(15)/(20)=(3)/(4) \\ E)(2)/(3)+(1)/(12)=(8+1)/(12)=(9)/(12)=(3)/(4) \end{gathered}`

Note that we need to find a common denominator for those.

2) Therefore, the answer is

`B,C,E`