I spent 1/4 of my money in one shop and another 1/8 in another shop what fraction is left

Answer 1

You spent:

1 / 4 + 1 / 8 = 2 • 1 / 2 • 4 + 1 / 8 =

2 / 8 + 1 / 8 = 3 / 8

The rest of the money is:

1 - 3 / 8 = 8 / 8 - 3 / 8 = 5 / 8