1 [(0.6-1/4)乘4/7 3/10]除以50%
=[(0.6-0.25)乘4/7 0.3]乘2
=0.5乘2
=1
2 2-6/13除以9/26- 2/3 18/35除以0.6乘2/3
=2-4/3-2/3 4/7
=4/7
给点儿悬赏分嘛!要调很多次输入法的!
1 [(0.6-1/4)乘4/7 3/10]除以50%
=[(0.6-0.25)乘4/7 0.3]乘2
=0.5乘2
=1
2 2-6/13除以9/26- 2/3 18/35除以0.6乘2/3
=2-4/3-2/3 4/7
=4/7
给点儿悬赏分嘛!要调很多次输入法的!