SOLUTION: Solve What number must be added to the numerator and subtracted from the denominator of 1/2 to produce a fraction equivalent to -8/7?

Question 1034635: Solve
What number must be added to the numerator and subtracted from the denominator of 1/2 to produce a fraction equivalent to -8/7?
Found 2 solutions by fractalier, sachi:
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Call the number x...then we write

Now cross-multiply and solve
7(1+x) = -8(2-x)
7 + 7x = -16 + 8x
23 = x

Answer by sachi(548) (Show Source): You can put this solution on YOUR website!
let the no be x
so 1+x/2-x=-8/7
7(1+x)=-8(2-x)
or x=23
ans
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