help me please

Here's a good resource that explains it........http://www.purplemath.com/modules/percents2.htm#Decimal_to_Fraction

I don't know the exact way to do it, but if I have decimal 0.625 for example, I then put the decimal numbers over an exponential of 10, like 10000, so I would have the fraction 625/10000, which is equivilant to 0.625. From there, I find common factors and divide down to the simplified answer:

625 / 5 =     125 /25 =   5  / 5 =  1 

10000 / 5 = 2000 /25 = 80 / 5 = 16

So my final answer would be 1/16.

Guest # 2

.625 x 1000/1000=

625/1000 = divide both sides by 125

5/8=0.625