SOLUTION: Jun can clean a room in 4 hours.Ana can clean the same room in 3 hours.Working together,how long will it take them to clean.envolving rational expressin

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Question 921151: Jun can clean a room in 4 hours.Ana can clean the same room in 3 hours.Working together,how long will it take them to clean.envolving rational expressin
Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
Sum their rates. The RECIPROCAL is how much TIME to clean "a room".