What is 3.9125 as a fraction?

In this article, we will guide you step by step through the process of converting the decimal 3.9125 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 3.9125 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.

3.9125 as a fraction equals 39125/10000 or 313/80

Now let's break down the steps for converting 3.9125 into a fraction.

Step 1:

First, we express 3.9125 as a fraction by placing it over 1:
3.9125/1

Step 2:

Next, we multiply both the numerator and denominator by 10 for each digit after the decimal point.
3.9125 x 10000/1 x 10000
  =  
39125/10000

Step 3:

Next, we find the Greatest Common Factor (GCF) for 39125 and 10000. Keep in mind a factor is just a number that divides into another number without any remainder.
The factors of 39125 are: 1 5 25 125 313 1565 7825 39125
The factors of 10000 are: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000
The GCF of 39125 and 10000 is: 125

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 125 in this case.
39125 ÷ 125/10000 ÷ 125
  =  
313/80


Great Work! We've just determined that 3.9125 as a fraction equals 39125/10000 or 313/80 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 simple or reduced fractions?

Simple or reduced fractions are fractions whose top number (numerator) and bottom number (denominator) cannot be any smaller, while still being a whole number. That is to say, the number can no longer be divided by any number other than one while still being a whole number. 1/3 is a good example of a fully reduced fraction.

What are imperial fractions?

Yards, feet, and inches are all part of the Imperial measurement system, so a 1/4 of an inch is described as an imperial fraction.

What is the Least Common Multiple (LCM)?

The Least Common Multiple (LCM) of two or more numbers is the smallest number that is a multiple of each of the given numbers. For example, the LCM of 4 and 6 is 12.

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 a square root?

The square root of a number is a value when multiplied by itself, gives that number. For example, the square root of 9 is 3 because 3 × 3 = 9.

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.

For a structured learning approach with video lessons try the Khan Academy.

Cliff Notes is tailored for independent study for the SAT, ACT, GMAT, GRE, and AP exams. It's a free service.



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