Laura E. asked • 02/25/17
I'm a bit confused about these types of questions. I have quite a few of them but if I can get the gist of how to do one maybe I can do the rest on my own. thanks! 1 Expert Answer
Tim C. answered • 02/25/17 Experienced and Effective Specialist in Praxis Math and GED Math
Let x stand for the number you want to add to both the numerator and denominator. Then you set up an equation like this: Then cross multiply to get: Continue by solving for x. You will get 7. Check your answer in the original equation and you will see that you get 12/28, which reduces to 3/7 *** If you found this helpful, please say thanks ***
Answer: The number to be added to both numerator and denominator is 7.Step-by-step explanation: The number: x Equation: (3+x)/(5+x) = 5/6 Cross multiply: (3 + x)(6) = (5 + x)(5) 6x + 18 = 5x + 25 6x - 5x = 25 - 18 x = 7 The number to be added to both numerator and denominator is 7.Check: (3+7)/(5+7) = 5/6 10/12 = 5/6 Simplify: 5/6 = 5/6 (True)
Answer:7 Step-by-step explanation: 3+7=10 5+7÷=12 10/12 is equal to 5/6 |