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(10.5*11.7*57*85)÷(1.7*1.9*3*5*7*9*11*13)
人气:112 ℃ 时间:2019-10-31 23:34:42
解答
=15/11=1.36363636.
具体:分子
10.5=7*1.5
11.7=9*1.3
57=1.9*30
85=1.7*50
所以:原式=【(7*1.5)*(7*1.3)*(1.9*30)*(1.7*50)】÷(1.7*1.9*3*5*7*9*11*13)
约分后 =15/11
见笑了,
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(10.5×11.7×57×85)/(1.7*1.9*3*5*7*9*11*13*15)
(10.5×11.7×57×85)÷(1.7×1.9×3×5×7×8×11×13×15)=_.
(10.5*11.7*57*85)除以(1.7*1.9*3*5*7*9*11*13*15)的简便算法
(57*85*105*177) / (1*3*5*7*9*11*13*15*17*19)=?
简便运算 (57*85*105*117)/(1*3*5*7*9*11*13*15*17*19)
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