Question

Which of the following equations uses the commutative property of addition to rewrite 1/3 + 2/5?

Answer 1

The commutative property states that you can invert the order of the terms of a sum:

$a+b=b+a$

So, if you start with

$\dfrac{1}{3}+\dfrac{2}{5}$

Applying the commutative property you'll get

$\dfrac{2}{5}+\dfrac{1}{3}$