梯等式计算(能简便的要简便) 4/9×[3/4-(9/16-3/8)] 36÷[(5/6-2/3)
梯等式计算(能简便的要简便)4/9×[3/4-(9/16-3/8)]36÷[(5/6-2/3)×3](1/15+2/17)×15×17(4/3-3/4÷3)×12...
梯等式计算(能简便的要简便)
4/9×[3/4-(9/16-3/8)]
36÷[(5/6-2/3)×3]
(1/15+2/17)×15×17
(4/3-3/4÷3)×12 展开
4/9×[3/4-(9/16-3/8)]
36÷[(5/6-2/3)×3]
(1/15+2/17)×15×17
(4/3-3/4÷3)×12 展开
1个回答
展开全部
梯等式计算(能简便的要简便)
4/9×[3/4-(9/16-3/8)]
=4/9*3/4-4/9*9/16+4/9*3/8
=1/3-1/4+1/6
=1/4
36÷[(5/6-2/3)×3]
=36 / [(5/6-4/6)*3]
=36 / 1/2
=72
(1/15+2/17)×15×17
=1/15*15+2/17*17*15
=1+2*15
=31
(4/3-3/4÷3)×12
=4/3*1/2-1/4*1/2
=2/3-1/8
=13/24
4/9×[3/4-(9/16-3/8)]
=4/9*3/4-4/9*9/16+4/9*3/8
=1/3-1/4+1/6
=1/4
36÷[(5/6-2/3)×3]
=36 / [(5/6-4/6)*3]
=36 / 1/2
=72
(1/15+2/17)×15×17
=1/15*15+2/17*17*15
=1+2*15
=31
(4/3-3/4÷3)×12
=4/3*1/2-1/4*1/2
=2/3-1/8
=13/24
更多追问追答
追问
*是÷?
还是X?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询