2/9+1/4÷2/5+3/8 2/3+(4/7-1/2)×1/12 2/3+3/4x=1/6 1/2x÷1/5=3/5 5x-3/5=16/15
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2/9+1/4÷2/5+3/82/3+(4/7-1/2)×1/122/3+3/4x=1/61/2x÷1/5=3/55x-3/5=16/152/9+1/4÷2/5+3/82/3+(4/7-1/2)×1/
2/9+1/4÷2/5+3/8 2/3+(4/7-1/2)×1/12 2/3+3/4x=1/6 1/2x÷1/5=3/5 5x-3/5=16/15
2/9+1/4÷2/5+3/8 2/3+(4/7-1/2)×1/12 2/3+3/4x=1/6 1/2x÷1/5=3/5 5x-3/5=16/15
2/9+1/4÷2/5+3/8 2/3+(4/7-1/2)×1/12 2/3+3/4x=1/6 1/2x÷1/5=3/5 5x-3/5=16/15
2/9+1/4÷2/5+3/8
=2/9+1/4×5/2+3/8
=2/9+5/8+3/8
=2/9+(5/8+3/8)
=2/9+1
=1·2/9
=11/9
2/3+(4/7-1/2)×1/12
=2/3+(4/7-1/2)×1/12
=2/3+4/7×1/12-1/2×1/12
=2/3+1/21-1/24
=14/21+1/21-1/24
=15/21-1/24
=5/7-1/24
=120/168-7/168
=113/168
2/3+3/4x=1/6
3/4x=1/6-2/3
3/4x=1/6-4/6
3/4x=-1/2
x=-1/2×4/3
x=-2/3
1/2x÷1/5=3/5
1/2x=3/5×5
1/2x=3
x=3×2
x=6
5x-3/5=16/15
5x=16/15+3/5
5x=16/15+9/15
5x=25/15
5x=5/3
x=5/3×1/5
x=1/3
写得数.8/9÷4 1÷2/3 2/5÷3 14÷7/15 5/2÷0.4 5/8÷3/8 3/8÷9/16 6/7÷14/9
写得数2/9÷1/4=?2/9÷2/5=?1/3÷5/8=?5/16÷5/8=?
1/2÷4/5÷(2/9×3/8)=?简便计算
2/1÷5/4÷(9/2×8/3)简便计算
8/9÷[(1/2+2/3)÷3/4] (8/9+16/17)×1/8+15/17 2/3+(4/8/9÷[(1/2+2/3)÷3/4](8/9+16/17)×1/8+15/172/3+(4/5-2/3)×5/3(5/6-2/3)×5/3
1÷(1÷2)÷(2÷3)÷(3÷4)÷.÷(8÷9)÷(9÷10)=?
3/5÷[7/8-(2/5+3/8)]-(4/5-1/4)* 6/11÷9/20
1÷2/1÷3/2÷4/3÷5/4÷6/5÷7/6÷8/7÷9/8÷10/9简便算法
1÷2/1÷3/2÷4/3÷5/4÷6/5÷7/6÷8/7÷9/8÷10/9=?
4/5÷【(5/8-1/2)÷5/8】 8×3/4-3÷4/3-3/421÷(1/3+2/5)÷9/11
帮忙算几道小学乘除法口算题40/27÷36 8÷25/16 9/8÷27/10 6/5÷6 8×4/1 4/3÷4 4/9÷2/3 5/2÷4 5/1÷3/2 9/7×6/5 18/5÷18/5 7/4÷4/7 7÷5/7 5/1+4/1 3/8÷2 100×15/85/3÷6÷15/1 5/9×3/2÷35/18 15÷25/9×5/4 15-7/3×9/4 9/4×16/15÷6/5直
(2/2/3-30/5/9)÷[(2/1/3-1/2/9)÷4-0.75]÷0.03125=2/2/3=8/3(2又3分之2)十分抱歉,应为:(2/2/3-30/5/9)÷[(2/1/3-1/1/9)÷4-0.75]÷0.03125=
1+2+3+4+5+6+7+8+9+10÷11÷12×0=?
简算:(5/9-7/8+5/18) ÷1/72 6÷(3/4-2/3+1/5)简算:(5/9-7/8+5/18) ÷1/72 6÷(3/4-2/3+1/5)
3/5-3/7+2/5-4/7 1/2+9/20÷9/10-5/8能不能简便运算?3/5-3/7+2/5-4/7 1/2+9/20÷9/10-5/8简便
1÷(2÷3)÷(3÷4)÷(5÷6)÷(6÷7)÷(7÷8)÷(8÷9) 快点,3分钟以内!
1×2÷3×4÷5×6÷7×8÷9怎么用简单的计算方式
在下面的算式中添上括号,结果最大.1÷2÷3÷4÷5÷6÷7÷8÷9