30 o'clock 1 1
1 of 8 1 of 00 1。
1÷(30/6+30/5) = 1 1/30 64/35÷(8/ 1+8/6) =8/5
6/5÷(6/3+3/5) =8/5 3/2÷4/35× 16/7 =30/ 1
1(6/ 1+8/ 1)= 7/24 A: