if the denominator of a fraction is 1 less than twice the numerator. If the numerator and denominator are both increased by l, the fraction become 3/5. Find the fraction.
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Answered by
32
Let the numerator be x
then denominator will be 2x-1 because question says that the denominator of a fraction is 1 less than twice the numerator.
so required fraction will be x/(2x-1)
Now question says that if the numerator and denominator are both increased by l, the fraction become 3/5.
So we add 1 to numerator and denominator both and get equation
(x+1)/(2x-1+1)=3/5
or (x+1)/(2x)=3/5
cross multiply
5(x+1)=3(2x)
or 5x+5=6x
or 5=6x-5x
or 5=x
now plug value of x=5 into required fraction x/(2x-1)
= 5/(2*5-1)
= 5/(10-1)
=5/9
Hence final answer is 5/9
Answered by
19
Answer:
Step-by-step explanation:
The denominator of a fraction is 1 less than twice the numerator. If the numerator and denominator are both increased by 1, the fraction becomes 3/5. Find the fraction?
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