四分之三加六分之五减（二分之一减四判纯吵分之一)
3/4+5/6-(1/2-1/4)
=1-1/4+1-1/6-1/4
=1/2+1-1/6
=3/6-1/6+1
=2/6+1
=1又3分之掘侍裤碧1
括号拆开再变换下次序3/4+1/4-1/2+5/6a啊
3/扰搭清4+5/6-(1/2-1/4)
=3/4+5/6-1/2+1/4
=(3/4+1/缓前4)+(5/6-1/2)
=1+1/枝慎3
=
四分之三加六分之五减（二分之一减四分之一)的简便方法
四分之三加六分之五减（二分之一减四判纯吵分之一)
3/4+5/6-(1/2-1/4)
=1-1/4+1-1/6-1/4
=1/2+1-1/6
=3/6-1/6+1
=2/6+1
=1又3分之掘侍裤碧1
括号拆开再变换下次序3/4+1/4-1/2+5/6a啊
3/扰搭清4+5/6-(1/2-1/4)
=3/4+5/6-1/2+1/4
=(3/4+1/缓前4)+(5/6-1/2)
=1+1/枝慎3
=