Homework Help: maths

Posted by chichi on Monday, February 25, 2008 at 2:27am.

FIND A FRACTION SUCH THAT: IF YOU ADD 2 TO THE NUMERATOR, IT BECOMES EQUIVALENT TO 0.5; AND IF YOU ADD 4 TO THE DENOMINATOR, IT BECOMES EQUIVALENT TO 0.1.

maths - drwls, Monday, February 25, 2008 at 2:35am
(n + 2)/d = 0.5
n/(d+4) = 0.1
n = 0.5 d - 2
n = 0.1 d + 0.4
0.4 d = 2.4
d = 6
(n+2)/6 = 0.5
n+2 = 3
n = 1
The original number is n/d = 1/6

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