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When fractions are expressed in different bases, they can be terminating or repeating.  For example, when $\frac{1}{5}$ is expressed in base $3,$ the result is
0.¯01213=0.01210121,
which is repeating.

When $\frac{1}{288}$ is expressed in base $25,$ is it terminating or repeating?

 Jun 17, 2024
 #1
avatar+1946 
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First, let's convert 1/288 into base 25 form. 

We get that (BD)25=(11×251)+(13×250)=(288)10

This means that 128810=1BD25

 

Doing base division, we have that

1BD25=0.¯0.02468ACEGIKN

 

So when 1288 is in base 25, the decimal is repeating. 

 

So repeating is our answer. 

 

Thanks! :)

 Jun 17, 2024

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