It’s possible to calculate 0.375 together a fraction, and put that in its easiest form, with only a few quick calculations. The simplest form of the portion you acquire from 0.375 is ⅜, however let’s take it a closer look at exactly how you would convert the decimal to a fraction and then alleviate the fraction down to its simplest form.

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The an initial thing the you need to do to transform a decimal right into the simplest form of a fraction is to transform the decimal you have into a fraction. Any fraction will execute for this initial conversion. The will assist know part things regarding the nature of decimals and also fractions. If you recognize the relationship in between decimals and also fractions girlfriend should have the ability to easily transform a decimal to a fraction.


Converting A Decimal to A Fraction

Let’s take it a look at a quick example of converting a decimal come a fraction. You need to remember that decimals are simply used come represent parts of entirety numbers. For this reason this way that the numbers the come after the decimal point have number places (columns) as with whole numbers have number places. The tenth location is the very first column after ~ the decimal point while the hundredths ar is the second column ~ the decimal point, and also so on.

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How to transform decimals to fractions. Photo: mine Own

The number 0.75 no a totality number, it means there’s 75% that a whole number. The number 1 will always be tantamount to 100% therefore to convert a decimal to a percentage, simply take the decimal in the hundredths place and move it over two spaces come the right and also then put the position of the last tower under the brand-new number.

If you have actually the decimal 0.412, friend can transform it come a fraction by noticing that the 2 is the thousandths column, meaning that 0.412 is tantamount to 412/1000. To transform the decimal right into a fraction we merely count the variety of columns after ~ the decimal suggest and then moved the decimal point over that numerous spaces. We then added the worth of the last pillar (the thousands shaft = one thousand) to the number together the denominator.

The Greatest typical Factor

As much as fountain go, 412/100 is reasonably unwieldy. It might be substantially smaller. Exactly how would one go around finding the smallest, or simplest, kind of the fraction? finding the smallest/simplest kind of a fraction is what we refer to as placing a portion in its most basic terms, or reducing the fraction. In order to do this, one demands to discover something dubbed the greatest usual factor or greatest common divisor (GCF or GCD).


The greatest common factor is the biggest number which evenly divides into the numerator and also the denominator the the fraction. In this case, if you have the fraction 412/1000 and also want to put it in its easiest form, know that the greatest typical factor of 412/100 is 4. To reduce this down to that simplest form would offer us 103/250.

Let’s take it a watch at one more example. Let’s say you have actually the decimal 0.875. In order to transform it into a fraction, let’s counting the columns, relocate the decimal location over 3 spaces, and put one thousands underneath it. This offers us 875/1000. The greatest usual factor of 875/1000 is 125, and if you division 125 right into the numerator and denominator, you’ll gain ⅞.

Finding The GCF

For the 2 previous examples we looked at, we listed you with the greatest typical factor because that the fraction. Typically though as soon as trying to determine a fraction’s GCF, you’ll need to do some calculations. To identify the greatest typical factor the a fraction, you have the right to use several various methods. Among the methods of identify the GCF is the prime Factorization method, wherein you multiply the end the prime determinants found in both numbers.

For example, let’s look at the portion 18/24. Prime components are factors which can only be multiply by one and itself.

The prime determinants of 18 room the numbers 2 and 3 (2 x 3 x 3 = 18), or the the smallest numbers you can multiply with each other to acquire 18.


The prime components of 24 are likewise 2 and 3 (2 x 2 x 2 x 3 = 24). Currently if you multiply 2 and also 3 together you acquire 6, which girlfriend divide right into 18/24 to acquire ¾.

You could also just list the end the common factors between two numbers. For example, if you had actually 180/210, you can write out the determinants of both 180 and also 210 and find the great common aspect that way.

Factors the 180 (other than one): 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20

Factors that 210 (other than one): 2, 3, 5, 6, 7, 10, 14, 15, 21

The 2 numbers re-superstructure the factors 2, 3, 5, 6, 10 and 15. In this case, the largest common factor listed here is 15, and when multiplied by two this creates 30.

30 walk indeed happen to it is in the GCF because that 180/210. (Note that you might have also found 30 by multiply 2, 3, and also 5 together). If you separated 30 into 180/210, you acquire ⅞.

If you had actually kept going and detailed out all the factors, you would certainly have found that 30 was the GCF eventually, however this have the right to take fairly a little bit of time when contrasted to utilizing the prime factorization method. Yes another an approach you can use to find the GCF together well, the department Method.

The division method is an alternate an approach of detect the GCF. This technique entails dividing the numerator and also denominator the the fraction into smaller and smaller chunk till they can’t be separated anymore. Every time the numbers still have typical factors that they have the right to be split by, division them till you can’t division them anymore.

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An instance of the department method of detect the GCF. Photo: mine own

As an example, let’s look at the portion 144/280. Splitting 280 and also 144 by 2 provides you the numbers 140 and 72. 140 and also 72 deserve to now be divided by 2 again, giving us the numbers 70 and also 36.

70 and also 36 still have actually even much more common factors in between them, so that they quiet be split even further. Dividing them by 2 again gives us 35 and also 18.

These two numbers don’t have any common factors in between them as well as 1. Let’s avoid here and multiply the numbers we divide them through together: 2 x 2 x 2 provides us 8. If we division 8 right into 144/280 we get 18/35.

To amount Up

Remember exactly how easy the is to rotate a portion into a decimal, all you must do is transition the decimal allude over come the best until girlfriend hit zero. Climate you should count how plenty of columns you moved the decimal suggest over. If the critical number remained in the thousandths column, you put 1000 together the denominator of the fraction.

In bespeak to put a portion into its simplest form, all you should do is uncover the GCF. Friend can discover the GCF with among several various methods:

Listing the primes of the particular numbers and also then multiplying with each other the usual prime factors.

Listing the end all the components of the numbers and then choosing the 2 largest components the numbers have in common.

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Divide the two numbers by usual factors until they no long have any type of common factors between them, then multiply the numbers you separated by together.


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