If the ratio of x+y to x−y is 279/262 , then the ratio of y to x can be written as a/b where a and b are coprime positive integers. Find a+b

2 answers

(x+y)/(x-y) = 279/262

x+y=279
x-y=262
2x = 541
2y = 17
y/x = 17/541
...
find the ratio given 12:7
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