original:
numerator: x
denominator: 2x+3
so the original fraction is
x/(2x+3)
new fraction:
(x-7)/(2x+3-7) = 7/19
19x - 133 = 14x - 28
5x = 105
x = 21
So you had 21/45
The denominator of a fraction is 3 more than twice the numerator. If both the numerator and denominator are decreased by 7 and the simplified result is 7/19 find the original fraction
2 answers
The denominator of a fraction is 3 more than twice the numerator.If both the numerator and the denominator of the fraction are increased by 5,the resulting fraction is 2/7.Find the fraction.