Is 7/28 a terminating decimal?




Here we will show you how to determine if 7/28 is a terminating decimal or a non-terminating decimal.

A terminating decimal is a decimal number that has a finite number of decimals and does not go on indefinitely. We want to know if the decimal number you get when you divide the fraction 7/28 (7 ÷ 28) is terminating or non-terminating.


Here are the steps to determine if 7/28 is a terminating decimal number:

1) Find the denominator of 7/28 in its lowest form.
The greatest common factor (GCF) of 7 and 28 is 7. Convert 7/28 to its simplest form by dividing the numerator and denominator by its GCF:

   
7 ÷ 7
 
   
28 ÷ 7
 
  = 
   
1
 
   
4
 
   

Thus, the denominator of 7/28 in its lowest form is 4.

2) Find the prime factors of the answer in Step 1.
The prime factors of 4 are all the prime numbers that you multiply together to get 4. The prime factors of 4 are:

2 x 2

3) Determine if 7/28 is terminating
A fraction is a terminating decimal if the prime factors of the denominator of the fraction in its lowest form only contain 2s and/or 5s or no prime factors at all. This is the case here, which means that our answer is as follows:

7/28
= terminating


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Is 7/29 a terminating decimal?
Is the next fraction on our list a terminating decimal? Go here to find out!


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