Adding and Subtracting with Fractions (4th Grade)

Adding Fractions

100

Add 5/10 + 3/10

8/10?

200

Add 4/12 + 6/12

8/12

300

Add 14/100 + 6/100

20/100

400

If a painter poured 1/4 gallon of yellow paint and 1/4 gallon red paint into a bucket, how much paint is in the bucket?

2/4 gallon or 1/2 gallon

500

Add 3/10 + 4/10 + 2/10

What is 9/10?

Subtracting Fractions

100

Subtract 11/12 - 5/12

6/12 or 1/2

200

3/5 - 2/5

1/5?

300

Subtract 8/10 - 4/10

4/10

400

The Screaming Eagle roller coaster has 9/12 of the cars full. What fraction of the cars are empty?

3/12

500

There are 12 colored marbles in a bag: 4/12 of the marbles are green, 3/12 are yellow, and 5/12 are blue. Gabe has already picked 2/12 of the marbles. What fraction of the marbles are not yellow?

9/12

Adding and Subtracting Mixed Numbers

100

2 4/10 + 5 5/10=

 7 9/10?

200

5 - 2 3/4

2 1/4

300

9 2/4 - 6 3/4=

2 3/4

400

The average weight of a basketball is 21 1/8 ounces. The average weight of a baseball is 5 2/8 ounces. How many more does the basketball weigh?

15 7/8 ounces

500

Shamar biked 1 9/12 miles from home to the lake, then went 1 3/12 miles around the lake, how many miles did he bike?

3 miles or 2 12/12 miles

Equivalent Fractions

100

2/4

1/2 

4/8

6/12

200

3/5

6/10

15/25

30/50

300

50/100

1/2

5/10

25/50

400

3/3

6/6

1

9/9

500

4/12

1/3

8/24

16/48

Compare Fractions

100

1/2 __ 5/10

=

200

3/12 ___ 3/10

<

300

1/5 __ 5/1

<

400

3/5 ___ 4/10

>

500

1 2/10 ___ 1 1/5

=