Fractions

Adding

100

1 1/2 + 1 1/2 + 1 1/2

4 1/2

200

1 3/6 + 2 5/6

4 2/6

300

1 1/3 + 2 2/3

4

400

3/6 + 1 2/6 + 2/6

2 1/6

500

4/3 + 1 2/3 + 2/3

3 2/3

Subtracting

100

2 1/2- 1 1/2

1

200

3 2/3 - 1 1/3

2 1/3

300

1 4/6 - 2/6

1 2/6

400

2 2/3 - 5/3

3/3 (1)

500

9/6 - 1 1/6

2/6

Multiplying

100

1 x 2/3

2/3

200

2 x 1/2

2/2 (1)

300

3 x 1/2

3/2

400

2 x 2/6

4/6

500

4 x 2/3

8/3

Dividing

100

1/6 / 1/6

1

200

1/3 / 1/6

2

300

1 / 1/3

3

400

1 1/2 / 1/2

3

500

5 1/2 / 1/2

11

Other Blocks as a Whole

100

If the red block is a whole, what fraction is 1 green block?

1/3

200

If the blue block is a whole, what fractions is 1 green block?

1/2

300

If the red block is a whole, what fraction are 2 green blocks?

2/3

400

If five red blocks are a whole, what fraction is each block?

1/5

500

If three red blocks are a whole, what fraction are two green blocks?

2/9