What is 4.05405 as a fraction?

In this article, we will guide you step by step through the process of converting the decimal 4.05405 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 4.05405 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.

4.05405 as a fraction equals 405405/100000 or 81081/20000

Now let's break down the steps for converting 4.05405 into a fraction.

Step 1:

First, we express 4.05405 as a fraction by placing it over 1:
4.05405/1

Step 2:

Next, we multiply both the numerator and denominator by 10 for each digit after the decimal point.
4.05405 x 100000/1 x 100000
  =  
405405/100000

Step 3:

Next, we find the Greatest Common Factor (GCF) for 405405 and 100000. Keep in mind a factor is just a number that divides into another number without any remainder.
The factors of 405405 are: 1 3 5 7 9 11 13 15 21 27 33 35 39 45 55 63 65 77 81 91 99 105 117 135 143 165 189 195 231 273 297 315 351 385 405 429 455 495 567 585 693 715 819 891 945 1001 1053 1155 1287 1365 1485 1755 2079 2145 2457 2835 3003 3465 3861 4095 4455 5005 5265 6237 6435 7371 9009 10395 11583 12285 15015 19305 27027 31185 36855 45045 57915 81081 135135 405405
The factors of 100000 are: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 3125 4000 5000 6250 10000 12500 20000 25000 50000 100000
The GCF of 405405 and 100000 is: 5

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 5 in this case.
405405 ÷ 5/100000 ÷ 5
  =  
81081/20000


Great Work! We've just determined that 4.05405 as a fraction equals 405405/100000 or 81081/20000 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 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 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 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.

What is a repeating decimal?

A repeating decimal is a decimal in which a digit or group of digits repeats infinitely. For example, 0.3333... (where 3 repeats forever) and 0.142857142857... (where 142857 repeats) are repeating decimals.

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 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.

For fun game based learning try Prodigy Math.

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

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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