Addition med brøker
2/7 + 3/7 =?
5/7
4/10 - 2/10 =?
2/10
1/4 * 2
2/4 (1/2)
2/9 + 3/9 + 2/9 =?
7/9
9/7 - 7/7 =?
2/7
4/16 * 5=?
20/16 (1 1/4)
2/8 + 1/4
2/4 (16/32) (1/2)
2/3 - 2/6=?
1/3
2/3 * 3/4=?
6/12 (1/2)
1/3 + 3/9 =?
2/3
4/6 - 3/18
3/6 (1/2)
5/6 + 4/6=?
9/12 - 2/3=?
1/12