Question

Which of the following equations uses the commutative property of addition to rewrite ?

Answer 1

The commutative property of the addition is:

`a+b=b+a;a,b\in\mathfrak{\Re }`

Where a and b are any numbers.

Therefore, in case of our problem

`\begin{gathered} (1)/(4)+(2)/(5)=a+b=b+a=(2)/(5)+(1)/(4) \\ \Rightarrow(1)/(4)+(2)/(5)=(2)/(5)+(1)/(4) \end{gathered}`

Then, the solution is

`(2)/(5)+(1)/(4)=(13)/(20)`

The solution is the first option