What you have to do here is to get the common denominator, so what you can naturally do is multiply the first fraction by the others denominator. So in this case it would be 3/4 times 3/3 and now you have 9/12, then 2/3 times 4/4 and now you have 8/12. So now you have the same denominators which would give you the answer of 8/12 because 8/12 is the 2/3 of the 3/4 cup of chocolate chips.