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How to make this fractionby Loonyplz
Tags: fraction 
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#1
Feb414, 01:39 AM

P: 1

how would i convert 7.8 x 10^3 = 39/5000 / 7.8 x 10^3 into a fraction on my calculator?
I know the result is 0.0078 but I don't know how to get it, thanks! 


#2
Feb414, 06:42 AM

P: 1,395

You want to start with 7.8 x 10^3 and end up with 39/5000 ?
10^(3) = 1/1000, so 7.8 x 10^3 = 7.8/1000. Multiply the numerator and the denominator by 10 to get integers and you end up with 78/10000. Remove common factors from this and you get the answer. 


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