Maria rewrites a fraction less than 1 as a decimal. The numerator is a whole number greater than 0. For which denominator will the fraction always convert to a repeating decimal?
A. 15
B. 6
C. 11
D. 18
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OpenStudy (anonymous):
sorry i was on a different question for a second
OpenStudy (welshfella):
well it cant be 6 because if say the denominator was 3 that would be 0.5 as a decimal which is non-repeating.
OpenStudy (anonymous):
ok i can see how that works...
OpenStudy (welshfella):
also 3/15 would equal 0.2 so its not 15
OpenStudy (anonymous):
is it 18?
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OpenStudy (welshfella):
that leaves 2
so what do you think it might be/
OpenStudy (anonymous):
d?
OpenStudy (welshfella):
try various numerators with 18
OpenStudy (welshfella):
6/18 = 0.333.... that is recurring
try some more
OpenStudy (anonymous):
so does that mean its right? or not?
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OpenStudy (anonymous):
sorry if i seem rude...im kinda in a hurry im going to the store soon and im not done with hw yet
OpenStudy (welshfella):
it might be right - but can we think of another number over 18 which is not repeating decimal If so then its not 18
OpenStudy (welshfella):
what about 9/18
- what is that as a decimal
OpenStudy (anonymous):
0.5
OpenStudy (welshfella):
right so not 18
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