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Question 19539: A family spends 1/10 of its annual for housing 1/4 for food and clothing, 1/5 for general expenses, and 2/15 for entertainment. What fractional part of their income is spent on these items altogether?
Answer by wuwei96815(245)   (Show Source):
You can put this solution on YOUR website! The way to solve this problem is to add all the fractions by finding a denominator that is common to them all. What denominator is common to 1/10,1/4,1/5, and 2/15?
How about 60? Even if it is not the lowest common denominator we can go ahead and use it and reduce it later if necessary.
1/10 times 60/60 = 6/60
1/4 times 60/60 = 15/60
1/5 times 60/60 = 12/60
2/15 times 60/60 = 8/60
6+15+12+8/60 = 41/60 I don't see anyway of reducing this answer to a lower denominator so our final answer will have to be 41/60.
I hope that I got it right!
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