The two digits in the numerator of a fraction are reversed in its denominator. If 1 is subtracted from both the numerator and denominator, the value of the resulting fraction is 1/2. The fraction whose numerator is the difference and whose denominator is the sum of the units and tens digits equals 2/5. Find the original fraction.
A. 25/52
B. 36/63
C. 37/73
D. 48/84
2007-04-02 04:29:10 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
By trial and error, the answer is C. From the first criteria given, only C satisfies criteria.
(37 - 1)/(73 - 1) = 36/72
Hence, the answer is 1/2.
Therefore, C is the correct answer.
2007-04-02 04:41:47 · answer #1 · answered by Anonymous · 0⤊ 0⤋
im 13 years old adn the naswer is
c- 37 / 73
you didnt even need the last aprt
37-1=36
73-1=72
72 divided by 2 is 36
therefore
36/72 = 1/2
and taht the only fraciton ahts equal to 1/2 when 1 is subtracted from both the numerator and denominator
2007-04-02 04:35:37 · answer #2 · answered by Tangoant 1 · 0⤊ 1⤋
This one's easiest to just plug and chug checking the answer.
A) 24/51, not 1/2, eliminate.
B) 35/62, not 1/2, eliminate
C) 36/72 is 1/2.
D) 47/83 is not 12, elminate.
Answer is C
2007-04-02 04:36:03 · answer #3 · answered by rebkos 3 · 0⤊ 0⤋
C just try them out all.
2007-04-02 04:33:09 · answer #4 · answered by gjmb1960 7 · 1⤊ 1⤋