SOLUTION: if the same number is adde to both the numerator and the denominator of the fraction 3/4,the result is 5/6.Find the numerator.

Question 537016: if the same number is adde to both the numerator and the denominator of the fraction 3/4,the result is 5/6.Find the numerator.
Answer by fcabanski(1391) (Show Source): You can put this solution on YOUR website!
The answer is obvious just by inspection. 3+2=5 and 4+2=6.

By algebra.

Cross multiply

Multiply each number by what's inside the ()

Subtract 5n from both sides, subtract 18 from both sides.

n = 2

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