Multiplying and Dividing Fractions

Multiplying fractions: Multiply the top numbers and multiply the bottom numbers.

Simplify if necessary. 
 

Dividing fractions: Keep, Change, Flip
-  Keep the first fraction, change the division sign to multiplication, and flip the numerator and denominator of the second fraction. Then, solve!

Examples:

Example 1.  Multiply.
Solution: Multiply the top numbers and multiply the bottom numbers.
, now, simplify:  

Example 2.  Solve.
Solution: Keep the first fraction, change the division sign to multiplication, and flip the numerator and denominator of the second fraction.
Then:

Example 3.  Calculate.
Solution: Multiply the top numbers and multiply the bottom numbers.
, simplify: 

Example 4.  Solve.
Solution: Keep the first fraction, change the division sign to multiplication, and flip the numerator and denominator of the second fraction.
Then: