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Find the 100th digit after the decimal point in the decimal expansion of 3/7.

 Jun 29, 2020
 #1
avatar
0

It's 7.

 Jun 29, 2020
 #3
avatar+62 
+4

Oh, it is? Sorry, I must have calculated wrong

chickenwing  Jun 29, 2020
 #8
avatar+1128 
0

I don't think it's 7

jimkey17  Jun 30, 2020
 #2
avatar+62 
+4

If you solve with long division until the digit repeats you get 0.428571428571... you see that it repeats every 6 digits so 100/6 is 16 remainder 4 so the fourth digit after is 4...2...8...5! Plz tell me if I got this correct!

 Jun 29, 2020
 #4
avatar+732 
0

hmmm i got 5 too

lokiisnotdead  Jun 29, 2020
edited by lokiisnotdead  Jun 29, 2020
 #9
avatar+1128 
+1

I agree with chickenwing and lokiisnotdead that the answer is 5

jimkey17  Jun 30, 2020
 #6
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-1

Wait no it's 5 I think.

 Jun 29, 2020
 #7
avatar+1128 
+1

3/7≈0.428571428571 and see how there is a pattern so it becomes  0.428571 | 428571 and there is 6 digits so we do 100/6=16 R4 where the R stands for remainder so it is the 4th number which is 5

 Jun 30, 2020

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