Subtracting fractions with unlike denominators

Subtracting fractions with unlike denominators:
Practice fraction subtraction equations with the unlike denominators.
Level game: 4th, 5th, 6th and 7th grade

1. Adding fractions with unlike denominators
2. Multiplying fractions with unlike denominators
3. Dividing fractions with unlike denominators
4. Simplifying fractions
5. Equivalent fractions