Anonymous

1/2 is the sum of the geometric progression 2/5^1 + 2/5^2 + 2/5^3 + 2/5^4 + ... That tells you the answer. Of course if you do not like infinitely long repeating "base 5 imals" you could just write 1/2.

Anonymous

http://www.convertit.com/Go/ConvertIt/Ca...

Anonymous

Just make long division ...__0.222... 2 /10 ......4 -------- ......10 ........4 ---------- ........1 etc.

Anonymous

0.2222222.... which makes sense. Multiply it by 2 and we get: 0.444444444......., which in base-5 would really be 1, much in the same way that 0.99999999.... in base-10 is 1.

Anonymous

0.2repeating...0.22222....1/2 = 2 / 5 + 2 / 25 + 2 / 125 + 2 / 625 +...

Anonymous

https://en.wikipedia.org/wiki/Quinary

Anonymous

In base 5, 1 = 1 in base 5, 2 = 2 Answer 1/2