Question

1/3 of the fish in Liam's fish tank were added today. Half of the other fish were a gift to Liam last week. The other 9 came from Liam's old fish tank. How many fish are in the fish tank?

Answer 1

There are 54 fish in the tank. The difference between the fish he had and the fish he has now is 45 fish. 1/3 = 2/6 1/2 = 3/6. I converted so there is a common denominator. 2/6 + 3/6 = 5/6. That leaves 9 fish. 9 fish is 1/6. So if I multiply 9 x 5, that gives me the rest of the fish which is 45. Then, I add that together to get 54. Hope this helped! :)