Question

17/21 + 2/3

please help me.
it's actually confusing for me to understand that the 2 changes to 14, but how?
step by step explanation please.​

Answer 1

Explanation:

What you want to do is find a common denominator of this equation. You can actually use 21 as that denominator because 7×3=21.

You'll keep the 17/21 for your first value, and for the second...

multiply each side of 2/3 by 7/7. That will end up being 14/21.

Finally, you will add those two values up and get 31/21 or 1 10/21.

Answer 2

31/21

Explanation:

17/21+2/3

First step is to get both denominators equal so 3 should be multiplied by 7 to get 21 and 2 should also be multiplied by 7,

This leaves 17/21+14/21 which equals to 31/21