Question 200489
1/(5x) +1/x =1/15
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LCD = 15x,  therefore  multiply  by  15x
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3 +15 =x
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18 =x,,,,,,,answer
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checking
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1/(5*18) + 1/18 =1/15
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.011 + .055 = .066
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.066 - .066,,,,,,ok