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What is the 20th digit after the decimal point of the sum of the decimal equivalents for the fractions 1/7 + 1/3

 Jun 18, 2019
 #1
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1/7  has the repeating form of   .142857

 

1/3 has the repeating form  .3

 

Every 6 digit cycle of the sum has the form     476190

 

So......after the 18th decimal place we have

 

_____.142857

_____.333333

 

So....the 20th digit after the decimal  is  7

 

 

cool cool cool

 Jun 18, 2019
 #2
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Thanks. You are the best!

 Jun 18, 2019

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