To convert decimals into fractions, see how many numbers are after the decimal place. Since the spots go from-
Ten- Hundred- Thousand- Ten thousand- Hundred thousand- Million, and so on. 0.14 would be 100 since it has 2 numbers after the decimal spot and hundred is the 2nd number in the spots.
Now put 0.14 above 1, like a fraction.

Then multiply both numbers by 100, since, as earlier said, there are 2 numbers from the decimal.
You should have 14 over 100, or
. Since your decimal is negative, just put the negative sign next to it. If it were positive, no negative sign.