Mixed Numbers Add Subtract Multiply

A whole number and a fraction together is called____

• proper fraction

• improper fraction

• mixed number

• all of the above

When converting a mixed number into an improper fraction, you ___ the whole number by the denominator.

• add

• subtract

• multiply

• divide

When converting the mixed number, after you multiply the whole number by the denominator, you___ the product and the old numerator together to become a new numerator of the improper fraction.

• add

• subtract

• multiply

• divide

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

• Find the square roots.

• Subtract.

• Turn them to IMPROPER FRACTIONS!

• Find common denominators.

What is the sum?

• 
• 
• 
• 

• 1/40
• 5  1/8
• 6  3/8
• 5/8

A _________ is written as a whole number and a fraction.

• unlike denominators

• mixed number

• proper fraction

• common multiple

I know I must _________ if the question asks for the sum.

• add

• subtract

• divide

• multiply

I know I must __________ if the question asks for the difference.

• subtract

• add

• multiply

• divide

Solve the problem. HINT: the subtraction makes the second fraction negative.

Rules:

Same sign: add and keep the sign

Different signs: subtract and keep the sign of the bigger number