Operations with Fractions

Parts of a Fractions  Numerator Denominator

Common Denominators In order to add or subtract fractions, we must find COMMON DENOMINATORS. To find these, both denominators must be FACTORS of the new common denominator.

Add/Subtract Example #1 

Add/Subtract Example #2 

Multiplying Fractions  Multiply the NUMERATORS.  Multiply the DENOMINATORS.  SIMPLIFY the answer or change it to a MIXED NUMBER if necessary.

Multiplying Fractions 

Dividing Fractions  Keep the FIRST FRACTION.  Flip the SECOND FRACTION.  Change the sign to MULTIPLICATION.  SIMPLIFY the answer or change it to a MIXED NUMBER if necessary.

Dividing Fractions #4 

Dividing Fractions #5 

White Board Practice!!

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 

Practice Problems Expectations:  Copy down the problem.  Use your notes to help you decide what process to use.  Show your work.  Circle your answer. 