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Question
Find (x + y) ÷ (x − y), if
\[x = \frac{2}{5}, y = \frac{1}{2}\]
Sum
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Solution
\[x = \frac{5}{4}, y = \frac{- 1}{3}\]
so`(x+y)÷ (x-y)=(2/5+1/2)÷(2/5-1/2)`
`=9/10xx10/-1=-9`
so`(x+y)÷(x-y)=-9`
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