What is 1.20888 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 1.20888 into a fraction.

Answer: 1.20888 as a fraction equals 120888/100000 or 15111/12500

Here is the solution for converting 1.20888 to a fraction:

Step 1:

First, we write 1.20888 as  
1.20888/1

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!
1.20888/1
  =  
1.20888 x 100000/1 x 100000
  =  
120888/100000


Step 3:

Next, we find the Greatest Common Factor (GCF) for 120888 and 100000. A factor is a number that divides into another number without any remainder.

The factors of 120888 are: 1  2  3  4  6  8  9  12  18  23  24  36  46  69  72  73  92  138  146  184  207  219  276  292  414  438  552  584  657  828  876  1314  1656  1679  1752  2628  3358  5037  5256  6716  10074  13432  15111  20148  30222  40296  60444  120888 
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 120888 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.
120888/100000
  =  
120888 ÷ 8/100000 ÷ 8
  =  
15111/12500


Good work! We have just walked through the steps on how to represent 1.20888 as a fraction.

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