SOLUTION: If 4 is added to the numerator of the fraction 2/5, what number must be added to the denominator to make the fraction equivalent to 1/2?

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Question 1080174: If 4 is added to the numerator of the fraction 2/5, what number must be added to the denominator to make the fraction equivalent to 1/2?
Answer by amfagge92(93) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the number..
2+4/5+X=1/2
6/5+X=1/2
12=5+X
X=7
∴7 is the number