Two friends shares a pizza. the first friend ate 5/12 of the pizza. when they wer both finished eating, there was 1/3 of the pizza left. how much pizza did the second friend eat?

The second friend ate 3/12 of the pizza. 

So, the first friend ate 5/12 of a pizza.

There was 1/3 pizza remaining after both friends ate. 

So, let's make the pizza cut into 12ths.

So, let's say they brought in a pizza cut into 12 equal parts.

So, we subtract 12/12 - 5/12. That equals -- 7/12.

There was 1/3 remaining.

We need to find how much pizza the second friend ate.

1/3 = 4/12.

So, all we need to do now is to subtract 7/12 - 4/12. That equals 3/12.

So, the second friend ate 3/12 of a pizza 

Glad I could help, and good luck!

AnonymousGiantsFan

)because it's going in order of the math sign