Adding, Subtracting and Multiplying Fractions and Mixed Numbers

Following the integer rules, would you add or subtract the fractions?

• add

• subtract

Solve

• 6

• -6

• 3 and 1/2

• -3 and 1/2

Solve and write your answer in simplest form.

2 ⅜ + 1 ¾

• 4 (1/8)

• 4 (5/8)

• 4 1/4

• 3 (6/8)

What operations do you have to get a common denominator to solve? (Choose all that apply.)

• Adding

• Subtracting

• Multiplying

• Dividing

What must you do when multiplying a proper fraction by a proper fraction?

• Find a common denominator and make equivalent fractions.

• Multiply the numerator by numerator and multiply the denominator by denominator

• Cross multiply

What is the sum of these fractions in lowest terms?

• 4/5

• 3/20

• 17/20

• 4/20

• 3

• 6

• 9

• 12

• Just multiply whole number by whole number and numerator by numerator and denominator by denominator

• Find a common denominator

• Change the mixed number to an improper fraction then multiply straight across

• Keep the first number, flip the second number, and then change the symbol

Fill in the blank to the essential question (from adding and subtracting fractions notes):

"How can I use _______________ fractions to add and subtract fractions?"

• similar

• common

• like

• equivalent

When do you need to find a common denominator?

• Only in adding fractions

• Only in subtracting fractions

• When multiplying or dividing fractions

• When adding or subtracting fractions