1) 8 3/18-5/18<span>=7 8/9
2)10 7/</span>8 / 6/8<span>=6 1/2
3)6 1/2*2/3</span><span>=4 1/3
4) 5 3/7/ 6 1/3</span><span>=6/7
5) 4 1/3+6/7</span><span>=5 4/21
6) 7 8/9/14/27</span>
7/1 : 35/24 = 7/1 * 24/35
7 * 24 1 * 24 24 3
- --- = - --- = --- = 3 --
1 * 35 1 * 7 7 7