Adding and Subtracting Fractions and Mixed Numbers with Like Denominators

Adding Fractions

100

2/5 + 2/5

4/5

200

7/12 + 2/12

9/12

300

1/5 + 1/5 + 1/5 + 1/5

4/5

400

7/12 + 6/12

1 1/12

500

1/3 + 1/3 + 1/3

1

Subtracting Fractions

100

3/3 - 1/3

2/3

200

5/6 - 2/6

Daily Double: give the equivalent fraction

3/6 or 1/2

300

4/10 - 3/10

1/10

400

Mrs. Fishel had 2/3 of a cake. If she ate 1/3 of the cake, how much of the cake is left?

1/3 of the cake left

500

1 - 4/6

2/6

Adding Mixed Numbers

100

5 4/8 + 2 1/8

7 5/8

200

3 3/6 + 2 2/6

5 5/6

300

Harry kayaked 1  7/8 miles before lunch. He kayaked 2 3/8 miles after lunch. How far did Harry kayak?

4 2/8 miles

400

5 7/10 + 4 4/10

10 1/10

500

Pip biked 1 9/12 around the lake, and then biked 4 9/12 miles to get home.

How far did Pip bike?

6 6/12 miles (or 6 1/2 miles)

Subtracting Mixed Numbers

100

5 1/5 -2 1/5

3

200

6 7/8 - 2 4/8

4 3/8

300

5 1/5 - 3 3/5

1 3/5

400

2 4/10 - 6/10

1  8/10

500

9 - 3 3/8

5 5/8

Changing Fractions to Mixed Numbers

100

5/2

2 1/2

200

4/3

1 1/3

300

9/4

2 1/4

400

15/3

5

500

9/2

4 1/2