Adding and Subtracting Fractions with Unlike Denominators

Operations with Proper Fractions

100

What is 2/3 and 4/3?

2

200

What is 3/9-2/18?

2/9

300

What is 6/9+3/10?

29/30

400

What is 1/3+1/5?

8/15

500

What is 2/3-3/8?

7/24

Operations with Mixed Numbers

100

What is 

2 and 1/5 + 1 and 3/4

3 and 19/20

200

What is 

3 and 1/2 MINUS 2 and 2/3?

5/6

300

What is 7 MINUS 1/3?

6 and 2/3

400

What is

3 and 5/6 PLUS 1 and 3/6?

5 and 1/3

500

What is 

3 and 2/6 MINUS 1 and 5/6?

1 and 1/2

Mixed Word Problems(addition/subtraction)

100

Johnny and Elizabeth were playing a video game and trying to get all of the treasure. Johnny got 1/3 of the treasure. Elizabeth got 5/9 of the treasure. Together, Johnny and Elizabeth got what fraction of the treasure?

8/9

200

Heba ate 1/12 of a box of cereal. Now the box is 3/4 full. What fraction of a full box was there before Heba ate

10/12=5/6

300

Two cats, Fluffy and Fireball, met in the park. Fluffy's tail is 1/3 of a meter long. Fireball's tail is 1/4 of a meter long. How much longer is Fluffy's tail than Fireball's tail?

1/12

400

At the party, Aisha and her friends ate 2 1/2 pizzas. After the party, there were 1 1/8 pizzas left. How many pizzas were there at the start of the party?

3 5/8 pizzas

500

In making macaroni and cheese, Jenny used 3/4 of a cup of cheddar and 1/2 of a cup of parmesan. How much cheese did Jenny use in all?

1 1/4