Is 4/12 a repeating decimal?




Here we will show you how to determine if 4/12 is a repeating decimal or a non-repeating decimal.

A repeating decimal is a decimal number that goes on forever. We want to know if the decimal number you get when you divide the fraction 4/12 (4 ÷ 12) is repeating or non-repeating.

Here are the steps to determine if 4/12 is a repeating decimal number:

1) Find the denominator of 4/12 in its lowest form.
The greatest common factor (GCF) of 4 and 12 is 4. Convert 4/12 to its simplest form by dividing the numerator and denominator by its GCF:

   
4 ÷ 4
 
   
12 ÷ 4
 
  = 
   
1
 
   
3
 
   

Thus, the denominator of 4/12 in its lowest form is 3.

2) Find the prime factors of the answer in Step 1.
The prime factors of 3 are all the prime numbers that you multiply together to get 3. The prime factors of 3 are:

3

3) Determine if 4/12 is repeating
A fraction is a repeating decimal if the prime factors of the denominator of the fraction in its lowest form do not only contain 2s and/or 5s or do not have any prime factors at all. This is the case here, which means that our answer is as follows:

4/12
= repeating


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Is 4/13 a repeating decimal?
Is the next fraction on our list a repeating decimal? Go here to find out!


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