SOLUTION: The denominator of a fraction is 4 more than the numerator if both the numerator and denominator are increased by 1 the the resulting fraction equals 1/2 find the original fraction
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Question 538037: The denominator of a fraction is 4 more than the numerator if both the numerator and denominator are increased by 1 the the resulting fraction equals 1/2 find the original fraction
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The denominator of a fraction is 4 more than the numerator if both the numerator and denominator are increased by 1 the the resulting fraction equals 1/2 find the original fraction
:
Let x = the numerator
then
(x+4) = the denominator
:
= =
Cross multiply
2(x+1) = (x+5)
2x + 2 = x + 5
2x - x = 5 - 2
x = 3 is the numerator
then
3+4 = 7 is the denominator
and
is the original fraction
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