Need help with fraction problem for homework.

Ramon and his wife Josephine have to paint their bedroom. Ramon paints 3/4 of the room and Josephine paints 2/5 __of the rest.__ What fraction of the room remains to be painted?

I can't get it. If you solve it, can you please tell me how you did it? This way I understand for the test. Please and thank you :o)

Re: Need help with fraction problem for homework.

Hey RRIVE3701.

Hint: x% of something is x/100. The rest of something left is 100% - percent that is gone.

I'll start you off by saying the rest that is left is (1-3/4) = 1/4 = 0.25 or 25% of the room.

Re: Need help with fraction problem for homework.

Ramon paints 75% of the room, and Josephine paints 40% of whats left. There is 25% left and 40% of 25 is 10%. 25% - 10% is 15. So that leaves 15/100 left, or 3/20.

Hope thats right.

Re: Need help with fraction problem for homework.

3/20 is correct. Thanks a ton. You're a lifesaver. You have no idea how long I've been working on this problem lol. Thanks again :o)