What is 2.57184 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 2.57184 into a fraction.

Answer: 2.57184 as a fraction equals 257184/100000 or 8037/3125

Here is the solution for converting 2.57184 to a fraction:

Step 1:

First, we write 2.57184 as  
2.57184/1

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!
2.57184/1
  =  
2.57184 x 100000/1 x 100000
  =  
257184/100000


Step 3:

Next, we find the Greatest Common Factor (GCF) for 257184 and 100000. A factor is a number that divides into another number without any remainder.

The factors of 257184 are: 1  2  3  4  6  8  9  12  16  18  19  24  32  36  38  47  48  57  72  76  94  96  114  141  144  152  171  188  228  282  288  304  342  376  423  456  564  608  684  752  846  893  912  1128  1368  1504  1692  1786  1824  2256  2679  2736  3384  3572  4512  5358  5472  6768  7144  8037  10716  13536  14288  16074  21432  28576  32148  42864  64296  85728  128592  257184 
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 257184 and 100000 that gives us a GCF value of: 32

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.
257184/100000
  =  
257184 ÷ 32/100000 ÷ 32
  =  
8037/3125


Good work! We have just walked through the steps on how to represent 2.57184 as a fraction.

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