What is 1.22108 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 1.22108 into a fraction.

Answer: 1.22108 as a fraction equals 122108/100000 or 30527/25000

Here is the solution for converting 1.22108 to a fraction:

Step 1:

First, we write 1.22108 as  
1.22108/1

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!
1.22108/1
  =  
1.22108 x 100000/1 x 100000
  =  
122108/100000


Step 3:

Next, we find the Greatest Common Factor (GCF) for 122108 and 100000. A factor is a number that divides into another number without any remainder.

The factors of 122108 are: 1  2  4  7  14  28  49  89  98  178  196  343  356  623  686  1246  1372  2492  4361  8722  17444  30527  61054  122108 
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 122108 and 100000 that gives us a GCF value of: 4

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.
122108/100000
  =  
122108 ÷ 4/100000 ÷ 4
  =  
30527/25000


Good work! We have just walked through the steps on how to represent 1.22108 as a fraction.

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