Brøker - husk og forkort

Plus

100

1/2 + 1/4 

3/4

200

3/5 + 2/5 

1

300

7/8 + 7/8

1 6/8

400

3/10 + 4/5

11/10 = 1 1/10

500

2/3 + 6/6 + 7/3

4/6 6/6 14/6 = 24/6 = 12/3 = 4

minus

100

3/4 - 1/2

1/4

200

5/6 - 1/3

1/2

300

7/10 - 3/10

2/5

400

9/8 - 1/4

7/8

500

11/12 - 5/12

1/2

gange

100

1/2 x 2/3

1/3

200

3/4 x 4/5

3/5

300

5/6 x 2/3

5/9

400

7/8 x 3/7

3/8

500

9/10 x 1/5

9/50

divider

100

1/2 / 1/4

2

200

3/4 / 2/3

9/8

300

5/7 / 1/7

5

400

8/9 / 2/3

4/3

500

5/6 / 5/12

2