Question

when 7 is added to the numerator and denominator of the fraction the new ratio of numerator and denominator is 13:19 what is the original ratio​

Answer 1

Answer:

1/2

Step-by-step explanation:

13-7/19-7

=6/12

=1/2

Answer 2

The original ratio cannot be determined

Solution:

Let the numerator be x and denominator be y

$Original\ fraction = \frac{x}{y}$

When 7 is added to the numerator and denominator of the fraction the new ratio of numerator and denominator is 13 : 19

Then,

$New\ fraction = \frac{x + 7}{y + 7}$

Ratio = 13 : 19

Therefore,

$\frac{x+7}{y+7} = \frac{13}{19}$

x and y are different variable ,so original fraction cannot be determined

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