10/2*10/2 5/4*6/4 7*3*3/2 11/2*33/22 13/4*30/29 5/2*7/3
18/7*9/8 14/16*32/3 4/3*8/5 4/5*8/1 (分数乘法)
13÷2/1 9÷15/8 7/2÷3/1 3/2÷7/2 18/5÷18/5
2÷14/9 4÷16/13 3 ÷14/3 13/7÷6/5 6÷3/2(分数除法)
5/3*6/1*5 8/13*5*13/4 7/8*25*8/7 26*27/19 48*49/24
10/2*10/2 5/4*6/4 7*3*3/2 11/2*33/22 13/4*30/29 5/2*7/3
18/7*9/8 14/16*32/3 4/3*8/5 4/5*8/1 (分数乘法)
13÷2/1 9÷15/8 7/2÷3/1 3/2÷7/2 18/5÷18/5
2÷14/9 4÷16/13 3 ÷14/3 13/7÷6/5 6÷3/2(分数除法)
5/3*6/1*5 8/13*5*13/4 7/8*25*8/7 26*27/19 48*49/24