0.121 repeating as a fraction




0.121 is a repeating decimal number and you want to convert it to a fraction or mixed number. When you say 0.121 repeating, you could mean that 1, 21, or 121 is repeating.

Thus, there are three different ways of answering "What is 0.121 repeating as a fraction?" Here are the three questions formulated in mathematical terms with the vinculum line above the decimal numbers that are repeating.

0.121 repeating as a fraction
0.121 repeating as a fraction
0.121 repeating as a fraction


The formula to convert any repeating decimal number to a fraction is as follows:

   
(DN x F) - NRP
 
   
D
 

DN = Decimal Number

F = 10 if one repeating number, 100 if two repeating numbers, 1000 if three repeating numbers, etc.

NRP = Non-repeating part of decimal number.

D = 9 if one repeating number, 99 if two repeating numbers, 999 if three repeating numbers, etc.

Below shows you how to get the answer to each of the three different questions above using our formula.



0.121 repeating as a fraction

   
(0.121 x 10) - 0.12
 
   
9
 

  = 
   
1.09
 
   
9
 
  = 
   
109
 
   
900
 
   

Below is the answer in the simplest form possible:

0.121 repeating as a fraction
= 109/900



0.121 repeating as a fraction

   
(0.121 x 100) - 0.1
 
   
99
 

  = 
   
12
 
   
99
 
  = 
   
120
 
   
990
 
   

Below is the answer in the simplest form possible:

0.121 repeating as a fraction
= 4/33



0.121 repeating as a fraction

   
(0.121 x 1000) - 0
 
   
999
 

  = 
   
121
 
   
999
 
   

Below is the answer in the simplest form possible:

0.121 repeating as a fraction
= 121/999




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