Add and Subtract Fractions

What must you have to add and subtract fractions?

• Common numerators

• Different numerators

• Different denominators

• Common denominators

Christine baked a pumpkin pie.  She ate 1/6 of the pie.  Her brother ate 1/3.  How much of the pie was left?

• 1/18

• 2/9

• 1/2

• 2/3

Add these fractions:  1/6 + 3/6
Make sure your answer is in the simplest form.

• 4/6

• 5/6

• 2/3

• 1/3

What is the least common denominator for 3 and 4?

• 6

• 4

• 3

• 12

What is the sum of these fractions in lowest terms?

• 5/12

• 5/24

• 6/12

• 6/144

Find the sum.

• 7/18

• 7/9

• 12/9

• 12/81

What is the sum of these fractions in lowest terms?

• 22/5

• 6/3

• 22/15

• 6/15

What equation is shown?

• 3/10 + 3/10 = 6/10

• 6/10 - 3/10 = 3/10

• 3/10 + 6/10 = 9/10

• 0 + 3/10 = 6/10

What equation is shown on the number line?

• 1/5 + 3/5 = 4/5

• 4/5 - 1/5 = 3/5

• 1/5 + 4/5 = 5/5

• 4/5 - 3/5 = 1/5

What is the sum of these fractions in lowest terms?

• 7/18

• 7/9

• 12/9

• 12/81