What is 4.08072 as a fraction?

Numbers can be represented in a variety of ways including percentages, decimals, and fractions. The ability to convert any number from one format to another is an important math skill to have. These skills are typically thought in fifth grade math and require an understanding of place values and Greatest Common Factor (GCF).

In this article, we teach those skills step by step while demonstrating how to convert decimal 4.08072 into a fraction.

Answer: 4.08072 as a fraction equals 408072/100000 or 51009/12500

Here is the solution for converting 4.08072 to a fraction:

Step 1:

First, we write 4.08072 as  
4.08072/1

Step 2:

Next, we multiply both the numerator and denominator by 10 for each digit after the decimal point. Remember the numerator is the top part of the fraction and the denominator is the bottom part!
4.08072/1
  =  
4.08072 x 100000/1 x 100000
  =  
408072/100000


Step 3:

Next, we find the Greatest Common Factor (GCF) for 408072 and 100000. A factor is a number that divides into another number without any remainder.

The factors of 408072 are: 1  2  3  4  6  7  8  12  14  21  24  28  42  49  56  84  98  147  168  196  294  347  392  588  694  1041  1176  1388  2082  2429  2776  4164  4858  7287  8328  9716  14574  17003  19432  29148  34006  51009  58296  68012  102018  136024  204036  408072 
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 
So for 408072 and 100000 that gives us a GCF value of: 8

Step 4:

For the last step we reduce the fraction. This just means writing the fraction in the simplest way. To do this we divide both the numerator and denominator by the GCF value we determined in step 3.
408072/100000
  =  
408072 ÷ 8/100000 ÷ 8
  =  
51009/12500


Good work! We have just walked through the steps on how to represent 4.08072 as a fraction.

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