What is 0.666 as a fraction?

In this article, we will guide you step by step through the process of converting the decimal 0.666 into a fraction. We will start by understanding how a decimal represents the fractional part of a number, then break down the steps to rewrite 0.666 as a fraction. Finally, we will simplify the fraction by identifying and applying the Greatest Common Factor, ensuring the results are in the simplest form.

By the end of this guide, you should have a good understanding of decimal to fraction conversions and be able to apply this knowledge to various mathematical problems. Let's begin.

0.666 as a fraction equals 666/1000 or 333/500

Now let's break down the steps for converting 0.666 into a fraction.

Step 1:

First, we express 0.666 as a fraction by placing it over 1:
0.666/1

Step 2:

Next, we multiply both the numerator and denominator by 10 for each digit after the decimal point.
0.666 x 1000/1 x 1000
  =  
666/1000

Step 3:

Next, we find the Greatest Common Factor (GCF) for 666 and 1000. Keep in mind a factor is just a number that divides into another number without any remainder.
The factors of 666 are: 1 2 3 6 9 18 37 74 111 222 333 666
The factors of 1000 are: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000
The GCF of 666 and 1000 is: 2

Step 4:

To simplify the fraction, we divide both the numerator and denominator by their greatest common factor (GCF), which we calculated in the previous step. The GCF value is 2 in this case.
666 ÷ 2/1000 ÷ 2
  =  
333/500


Great Work! We've just determined that 0.666 as a fraction equals 666/1000 or 333/500 in its simplest form.

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Frequently asked math questions, including decimals and fractions

Read the following section to help deepen your understanding of basic math concepts.

What are mixed numbers?

A mixed number is made up of a whole number and a proper fraction.

What are prime numbers?

Prime numbers are numbers greater than 1 that have only two factors: 1 and themselves. Examples include 2, 3, 5, 7, 11, 13, 17 and so on.

What is a mean (average)?

The mean, or average, is calculated by adding all the numbers in a set and dividing by the total number of values. For example, the mean of 3, 4, and 5 is (3 + 4 + 5)/3 = 4.

How do you convert a fraction to a decimal?

A fraction can be converted to a decimal by dividing the numerator by the denominator. For example, 3/4 = 3 ÷ 4 = 0.75. Check out our fraction page for lots of examples on how to convert fractions into decimals.

What is a decimal as a percentage?

A decimal can be converted to a percentage by multiplying it by 100 and adding a percent sign. For example, 0.75 × 100 = 75%.

What is a fraction as a percentage?

A fraction can be converted to a percentage by dividing the numerator by the denominator and multiplying by 100. For example, 3/6 = 1/2 = 0.50 × 100 = 50%.


Educational math links

There are numerous online resources available (some free and some paid) for learning math including decimals and fractions. These range from interactive games to in-depth courses and lessons. We recommend these websites as a valuable resource for students of all skill levels.

For personalized 1-1 lessons check out Preply.com.

For a self-study courses for Algebra. We recommend Purple Math.

The Fusion Academy provides one on one math lessons. Yes, one teach to one student for both middle and high school students.



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