What is 2.12736 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 2.12736 into a fraction.

Answer: 2.12736 as a fraction equals 212736/100000 or 6648/3125

Here is the solution for converting 2.12736 to a fraction:

Step 1:

First, we write 2.12736 as  
2.12736/1

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!
2.12736/1
  =  
2.12736 x 100000/1 x 100000
  =  
212736/100000


Step 3:

Next, we find the Greatest Common Factor (GCF) for 212736 and 100000. A factor is a number that divides into another number without any remainder.

The factors of 212736 are: 1  2  3  4  6  8  12  16  24  32  48  64  96  128  192  256  277  384  554  768  831  1108  1662  2216  3324  4432  6648  8864  13296  17728  26592  35456  53184  70912  106368  212736 
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 212736 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.
212736/100000
  =  
212736 ÷ 32/100000 ÷ 32
  =  
6648/3125


Good work! We have just walked through the steps on how to represent 2.12736 as a fraction.

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