1\6加(5\6减3\4)除2\54\5乘1\4加3.2乘1\4减1除4[1减(1\4加3\8)]除1\4(7\20减5\36)乘4减4\93\4除6减1\6乘1\413除(1\4加5\6)乘3\4[1减(3\8加1\4)]乘2\398\15乘[5\6除(7\9减1\3)]

1\6加(5\6减3\4)除2\54\5乘1\4加3.2乘1\4减1除4[1减(1\4加3\8)]除1\4(7\20减5\36)乘4减4\93\4除6减1\6乘1\413除(1\4加5\6)乘3\4[1减(3\8加1\4)]乘2\398\15乘[5\6除(7\9减1\3)]
1\6加(5\6减3\4)除2\5
4\5乘1\4加3.2乘1\4减1除4
[1减(1\4加3\8)]除1\4
(7\20减5\36)乘4减4\9
3\4除6减1\6乘1\4
13除(1\4加5\6)乘3\4
[1减(3\8加1\4)]乘2\39
8\15乘[5\6除(7\9减1\3)]

1\6加(5\6减3\4)除2\54\5乘1\4加3.2乘1\4减1除4[1减(1\4加3\8)]除1\4(7\20减5\36)乘4减4\93\4除6减1\6乘1\413除(1\4加5\6)乘3\4[1减(3\8加1\4)]乘2\398\15乘[5\6除(7\9减1\3)]
1.0 1/6 + （5/6-3/4）/ (2/5) = 1/6 + (20/24 - 18/24) / (2/5)
= 1/6 + (2/24) / (2/5)
= 1/6 + (2/24 * 5/2)
= 1/6 + 5/24
= 4/24 + 5/24 = 9 / 24 = 3 / 8
2.0 (4/5 * 1/4 ) + (3.2* 1/4) - (1 / 4) = (1/5) + (16/5 * 1/4) - (1/4)
= (1/5) + (4/5) - (1/ 4)
= 1 - (1 / 4)
= 3 / 4