Is 25/40 a terminating decimal?

Here we will show you how to determine if 25/40 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 25/40 (25 ÷ 40) is terminating or non-terminating.

Here are the steps to determine if 25/40 is a terminating decimal number:

1) Find the denominator of 25/40 in its lowest form.
The greatest common factor (GCF) of 25 and 40 is 5. Convert 25/40 to its simplest form by dividing the numerator and denominator by its GCF:

		25 ÷ 5
		40 ÷ 5

		5
		8

Thus, the denominator of 25/40 in its lowest form is 8.

2) Find the prime factors of the answer in Step 1.
The prime factors of 8 are all the prime numbers that you multiply together to get 8. The prime factors of 8 are:

2 x 2 x 2

3) Determine if 25/40 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:

25/40
= terminating

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