Bill has 2/3 of his pizza left from lunch. If he eats 3/7 more of his pizza, how much pizza is left

Answer 1

Convert both to fractions with a common denominator of 21 and subtract. (14/21)-(9/21)

Answer 2

Thanks

Answer 3

1. 5/21
2. 3/40
3. 33/56
4. 1/20
5. 2/5