Question

the denominator of fraction is one less than twice its numerator if one is added two numerator and denominator the ratio is 3:5 find the fraction ​

Answer 1

Answer by Rashid21

The denominator of a fraction is one less than twice the numerator. If seven is added to both the numerator and the denominator, the resulting fraction has a value of seven-tenths. Find the original fraction.

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Let the numerator be "x".

The the denominator is "2x-1".

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Equation:

(x+7/(2x-1+7) = 7/10

Cross multiply to get:

10(x+7) = 7(2x+6)

10x + 70 = 14x+42

4x = 28

x = 7

2x-1 = 13

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Ans. The original fraction is 7/13