Subtracting Fractions

What must you have to add and subtract fractions?

• Common numerators

• Different numerators

• Different denominators

• Common denominators

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3

• 4

• 24

• 12

Dylan had a whole cupcake in his lunch bag. He ate 1/4 of it. How much does he have left?

• 1/4

• 1/2

• 1/3

• 3/4

6  2/4 - 2  2/5=
Simplify/Reduce if needed.

• 5  2/7

• 4  2/20

• 6  1/2

• 4  1/10

8  2/4 - 3  2/3=
Simplify/Reduce if needed.

• 5  2/12

• 4  5/6

• 11  1/6

• 8  2/3

What must you have to in order to add and subtract fractions?

• common numerators

• Different numerators

• common denominators

• different denominators

What is the difference in the following equation in its lowest terms:
9/12 - 5/12 =

• 14/12

• 1/3

• 5/12

• 2/3

What is the difference in the following equation in its lowest terms:
4/5 - 2/5 =

• 2/5

• 1/5

• 4/5

• 3/5

Find the difference of the fractions in the following equation:

15/18 - 3/18 =

• 3/18 or 1/6

• 12/18 or 2/3

• 12/36 or 1/3

• 18/18 or 1

Connor ate 6/8 of one pizza. Kirsti ate 2/8 of another pizza. How much more of a pizza did Connor eat?

• 3/8

• 6/8 or 3/4

• 4/8 or 1/2

• 2/8 or 1/4