If a/(a + b) = 15/21, what is (a + b)/(a –b) equal to? – McqOptions

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1.	If a/(a + b) = 15/21, what is (a + b)/(a –b) equal to?
A.	13/9
B.	23/11
C.	14/5
D.	21/9
Answer» E.

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