SOLUTION: What number multiplied by the numerator and added to the denominator of the fraction 2/5 makes the resulting fraction 3/4?
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Question 523607:  What number multiplied by the numerator and added to the denominator of the fraction 2/5 makes the resulting fraction 3/4? 
Found 2 solutions by  oberobic, MathTherapy:
Answer by oberobic(2304)   (Show Source): You can put this solution on YOUR website!
 
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cross multiply
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Answer by MathTherapy(10557)   (Show Source): You can put this solution on YOUR website!
 What number multiplied by the numerator and added to the denominator of the fraction 2/5 makes the resulting fraction 3/4?
Let the number be N
Then: 
3(5 + N) = 8N ----- Cross-multiplying
15 + 3N = 8N
3N – 8N = - 15 
– 5N = - 15
N, or number = , or , or 
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