What is 2.175 as a fraction?

In this article, we will guide you step by step through the process of converting the decimal 2.175 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 2.175 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.

2.175 as a fraction equals 2175/1000 or 87/40

Now let's break down the steps for converting 2.175 into a fraction.

Step 1:

First, we express 2.175 as a fraction by placing it over 1:
2.175/1

Step 2:

Next, we multiply both the numerator and denominator by 10 for each digit after the decimal point.
2.175 x 1000/1 x 1000
  =  
2175/1000

Step 3:

Next, we find the Greatest Common Factor (GCF) for 2175 and 1000. Keep in mind a factor is just a number that divides into another number without any remainder.
The factors of 2175 are: 1 3 5 15 25 29 75 87 145 435 725 2175
The factors of 1000 are: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000
The GCF of 2175 and 1000 is: 25

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 25 in this case.
2175 ÷ 25/1000 ÷ 25
  =  
87/40


Great Work! We've just determined that 2.175 as a fraction equals 2175/1000 or 87/40 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.

Why is there a need to convert decimals to fractions anyway?

The U.S. is one of a few countries worldwide that still uses the Imperial system of measurement, which is a fractional measurement system, where items are measured in feet, inches, pounds, ounces, yards, and so on. The majority of the rest of the world uses the metric system, which is a decimal measurement system, where items are measured in cm, meters, grams, kilos, and so on.

What is a percentage?

A percentage is a number as a fraction of 100. It is denoted using the '%' symbol. For example, 20% means 20 out of 100.

What is an exponent?

An exponent refers to the number of times a number (the base) is multiplied by itself. For example, 2³ means 2 × 2 × 2 = 8.

What is a proportion?

A proportion is an equation that states that two ratios are equal. For example, 1/2 = 2/4 shows a proportional relationship.

What is a decimal place?

A decimal place refers to the position of a digit to the right of the decimal point. For example, in 3.141, the digit 1 is in the thousandths place.


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.

Use Study.com for an entertaining video lesson approach.

The Art of Problem Solving provides courses tailored for school students including elementary, middle and high school.

Tailored for college students Paul's Online Math Notes let's students independent study for their math classes. It's also a free service.



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