Question

Ruby ate 1/3 of a pizza, and Angie are 1/5 of the pizza. How much of the pizza did they eat in all

Answer 1

They ate 8/15 of the pizza in total. The explanation is first you need to find a denominator they both have in common which is 15 so you convert them which is 1/3=5/15 and 1/5=3/15 so then you add them together to get 8/15.