The sum of numerator and denominator of a fraction is 3 less than twice its denominator.
If each of the numerator and denominator is decreased by 1, the fraction becomes ½.
Frame the two equations only.
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Answer:
5/7
Step-by-step explanation:
a+b=2b-3 .........(1)
therefore a=b-3
according to the condition
(a-1)/b-1=1/2 ..........(2)
b-3-1/b-1=1/2
therefore b=7
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