Try to factorize denominator and see which one does not give 3 or 9 or 7 or 11 etc as a factor. That one will always terminate.
Hope that helps.
Terminating F*ing decimals...
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cubicle_bound_misfit
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jnellaz
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Don't sweat it. The rule is very easy:
1. Factor out the denominator of the fraction and list all the prime factors.
2. If the denominator contains a prime factor other than 2 or 5 then the resulting fraction will be non-terminating.
E.g.
34/512
512 = 2^9 Thus this fraction is terminating
50/75
75 = 5 * 5 * 3 Thus this fraction is non-terminating
1. Factor out the denominator of the fraction and list all the prime factors.
2. If the denominator contains a prime factor other than 2 or 5 then the resulting fraction will be non-terminating.
E.g.
34/512
512 = 2^9 Thus this fraction is terminating
50/75
75 = 5 * 5 * 3 Thus this fraction is non-terminating
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GMATters1001
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FIRST, MAKE SURE THE FRACTION IS SIMPLIFIED!! If not, you may be left with a 3 as a factor in both the numerator and denominator that would have otherwise cancelled through simplification.
Once simplified, if the denominator has ANYTHING OTHER THAN A 2 OR A 5 as a factor, the fraction will NOT terminate.
Once simplified, if the denominator has ANYTHING OTHER THAN A 2 OR A 5 as a factor, the fraction will NOT terminate.
