Multiply and Divide Positive and Negative Fractions and Mixed Numbers

When Multiplying/Dividing Mixed Numbers you MUST 1st...

• Find the square roots.

• Subtract.

• Turn them to IMPROPER FRACTIONS!

• Find common denominators.

When DIVIDING FRACTIONS ...

• Add the fractions.

• Get a common denominator.

• Keep the 1st fraction, Change to multiplication, and Flip the 2nd fraction to its reciprocal.

• Subtract the fractions.

When MULTIPLYING FRACTIONS...

• You MUST get a common denominator.

• Multiply across the top, multiply across the bottom.

• Add the fractions.

• Subtract the fractions.

When MULTIPLYING AND DIVIDING a (Negative)(Negative) =

• a POSITIVE answer.

• a NEGATIVE answer.

• a square root.

• a mess.

When multiplying fractions you do what?

• KCF

• Find the least common denominator

• Multiply all of the numbers together

• Multiply top times top and bottom times bottom

Make sure your final answer is in simplest form.

-3 3/4 ÷ 5 1/2
Make sure your final answer is in simplest form.

Divide.

• -1/10

• -5/8

• -2/20

• 5/8

Multiply.

• 23/3

• 5 3/12

• 7 2/3

• 92/12

Multiply. Make sure your final answer is in simplest form. 

• -7/8

• 7/8

• -63/72

• 63/72