Practicing Subtraction of Fractions With Unlike Denominators

Work out each problem given.  Enter a guess as to the correct answer as a REDUCED IMPROPER FRACTION (NO MIXED NUMBERS, HOWEVER WHOLE NUMBER ANSWERS ARE ALLOWED)  Click the CHECK  button to see if you are right.  If you are wrong, try again and click the check button.  The Next 10 button will give you 10 more problems to try.  If you need more help, click TUTORIAL.  When you are satisfied that you know how to do this unit, click the TEST link.