Question

I spent
3
4
of my money and then I spent
1
5
of what was left. What part of all my money do I have left?

Answer 1

Assuming you mean 3/4 and 1/5:

Common denominator
3/4=15/20
1/5=4/20
15/20+4/20=19/20
20/20-19/20=1/20

Answer: You have 1/20 of youu money left

Hope this helps:)