A fraction becomes 1/3 if 1 is subtracted from both its numerator and denominator. If 1 is added to both the numerator and denominator, it becomes 1/2. Find the fraction.
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Answer:
your ans is 3/7......................
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Fraction = = 3/7.
Step-by-step explanation:
Let x be the numerator and y the denominator.
Fraction will be x/y.
Given:
(x -1) / (y-1) = 1/3
3x - y = 2 -------------(1)
(x + 1) / (y+1) = 1/2
2x - y = -1 -------------(2)
Subtracting (2) from (1), we get: x = 3
Therefore x = +3
Substituting in x = 3 equation 1, we get 9 - y = 2
Therefore y = 7
Hence solved. x = 3, y = 7
So the fraction will be x/y = 3/7.
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