Posted by noah on Friday, December 7, 2012 at 11:52pm.
What fraction = .40625

math  Mac, Saturday, December 8, 2012 at 4:36am
40625/100000
Reduce
40625=5^5 times 13
100000=5^5 times 2^5

math  Steve, Saturday, December 8, 2012 at 4:39am
also, we know that 5/8 = 0.625,so we have
2/5 + 5/8000 = 641/1600

math  Steve, Saturday, December 8, 2012 at 4:40am
oops. That's
2/5 + 5/800 = 13/32
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