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The denominator of a fraction is 3 more than its numerator. 
When 1/2 is added to this fraction, the resulting fraction's denominator is twice the denominator of the original fractions and its numerator is 1 more than its denominator. 

What is the numerator of the original fraction?

 Jan 15, 2019

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 #1
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4/7 + 1/2 = 8/14 + 7/14 = 15/14   numerator of original fxn = 4

 Jan 15, 2019
edited by ElectricPavlov  Jan 15, 2019
 #2
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you have x/(x+3). then you add 1/2 and you have (3x+3)/(2x+6). this means 3x+3 is 1 more than x, so x = -1.

 

HOPE THIS HELPED!

 Jan 15, 2019

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