Question

I need help on changing a decimal to a fraction to a percent

Answer 1

to change a decimal to percent move the dot two spaces to the right
example .20 = 20%
to change percent to decimal to the opposite move the dot 2 spaces to the left
example 20% = .20

Answer 2

to change any decimal to a fraction, just count how many decimals you have, and use THAT MANY ZEROS at the bottom, with a one in front of them
removing the "dot"

say \(\bf 3.12345 \implies \cfrac{312345}{\textit{1 and 5 zeros}} \implies \cfrac{312345}{100000}\)

Answer 3

thank you for helping me

Answer 4

this might be useful
http://www.khanacademy.org/math/arithmetic/decimals/percent_tutorial/v/representing-a-number-as-a-decimal--percent--and-fraction-2