The sum of numerator and denominator is 12. If the denominator is increased by 3 fraction becomes half . Find the fraction using substutional method
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2
Answer:
x =5
y = 7
Step-by-step explanation:
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Answer:
Fraction is N/D = 5/7
Step-by-step explanation:
N + D = 12 ____(1)
N/(D+3) = 1/2
=> 2N - D = 3 _____(2)
eqn (1) + eqn (2):
3N = 15
N = 5
Substitute N = 5 in eqn (1),
D = 12 - 5 = 7
D = 7
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