4The sum of numerator and denominator of a fraction is 3 less than twice the denominator. If each of the numerator and denominator is decreased by 1, the fraction becomes 1 / 2 . Find the fraction.
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Question :
- The sum of numerator and denominator of a fraction is 3 less than twice the denominator. If each of the numerator and denominator is decreased by 1, the fraction becomes 1 / 2 . Find the fraction.
Answer :
Answer:
The numerator be 'x' and denominator be ' y'
then,
the sum of the numerator and denominator of a fraction is 3 less than the twice is x+y=2y-3 :- x-y+3=0 - equation 1
if the numerator and denominator is decreased by 1 then
x -1= :- 2(x-1) = 1(y-1) :- 2x-y-1=0 -equation 2
then equation 1 = equation 2
x-y+3=2x-y-1 :- x=4
from the equation 1
x-y+3=0 :- 4-y+3=0 :- y=7
there fore the fraction is
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