Emma buys two identical bottles of shampoo. She uses of 3/8 one of them at home, and uses 7/10
of all the remaining shampoo while she is on holidays. In total, how much shampoo remains?
she uses 3/8's of one of them and 7/10 of the other one. first, you need to make the denomanators the same number. so the answer is 3/16 of the starting amount
