Question

Which property will help to find these sums?

57/80+21/80 and 21/80+57/80
the Associative Property
the Commutative Property
the Identity Property

Answer 1

Associative Property

Explanation:

Associative Property is the ability to change the order of an equation, and get the same result.

For example:

(1 + 2) + 3 = 6

If you were to take this equation, and this equation:

3 + 2 + 1 = 6

These numbers are in a different order, but the answer is the same!

It goes the same way for your problem.

57/80 + 21/80 and 21/80 + 57/80.

Therefore, the property to help you would be Associative Property.