Kyle writes 2/5 +2/3 +4/5 rewrite kyles expression using properties so the fractions are easier to add?

You have to find the common denominator in order to add the fractions. Look at the denominators, you can multiply the 5 denominator and 3 denominator by each other. The common denominator is 15. Then you need to change each fraction before you can add.

2/5 +2/3 +4/5

2/5 to x/15
5 goes into 15 3 times so multiply the numerator by 3.
2/5= 6/16

2/3 to x/15
3 goes into 15 5 times so multiply the numerator by 5.
2/3= 10/15

4/5 to x/15
5 goes into 15 3 times so multiply the numerator by 3.
4/5= 12/15

Now add the fractions with common denominators:
=6/16 + 10/15 + 12/15
=16/15 + 12/15
=28/15 = 1 13/15

Hope this helps! :)