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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