This is my math project. To get the answer correct, you do have to add the 0 in front of the decimal. Ex. 0.5
This math tutorial/lesson covers the standard 7.NS.2.d - Convert a rational number to a decimal using long division; know that the decimal form of a rational number terminates in 0s or eventually repeats. When you get to the end of the lesson, press space to go back to the beginning and do it over. Good Luck! :P