how do i convert decimals into fractions?

http://converter.intemodino.com/de/dezimalzahlen-in-bruche-umwandeln.html

Write the fraction like you would say the decimal, for instance .3 is read as three tenths, so fraction is 3/10, if you have .275 you would read it as two hundred seventy five one thousandths or 275/1000 - then make sure you simplify if that is the instruction given