Question

I have trouble solving word problems. Can you help me solve this problem?

If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take both of them to paint the house together?

Answer 1

Bobpursley already answered your question.

http://www.jiskha.com/display.cgi?id=1226828150

Answer 2

How did you get 10/24 then 24/10?

Answer 3

Remember: when dividing fractions, it is the same as multiplying by the inverse.

s/(b/c)= ca/b

so
1/(10/24)= 24/10

Answer 4

How did you get 10/24? Are you adding the fractions by useing the lease common denominator?

Answer 5

Yes.