Multiplication
We can only cancel in this kind of problem.
Add Same
To add fractions, we ___ the numerator and ___ the demoninator.
Sutract Same
To subtract fractions, we ___ the numerator and ___the denominator.
Common Denominators
To add or subtract fractions, we need ___ ___.
Improper Fractions
To multiply or divide, we need ___ ___.
Multiply Multiply
To multiply fractions, we ___ the numerator and ___ the denominator.
Multiply Flip
To divide fractions, we change to ___ and ___ the 2nd fraction.