Here we will show you how to determine if 2/4 is a repeating decimal or a nonrepeating 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 2/4 (2 ÷ 4) is repeating or nonrepeating.
Here are the steps to determine if 2/4 is a repeating decimal number:
1) Find the denominator of 2/4 in its lowest form.
The greatest common factor (GCF) of 2 and 4 is 2. Convert 2/4 to its simplest form by dividing the numerator and denominator by its GCF:
 = 

Thus, the denominator of 2/4 in its lowest form is 2.
2) Find the prime factors of the answer in Step 1.
The prime factors of 2 are all the prime numbers that you multiply together to get 2. The prime factors of 2 are:
2
3) Determine if 2/4 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 not the case here, which means that our answer is as follows:
2/4
= nonrepeating
Repeating Decimal Calculator
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