[(10.75-4 11/12)×2 7/11]÷[(1.125+1/12)÷(2.25÷10 10/11)]
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[(10.75-4 11/12)×2 7/11]÷[(1.125+1/12)÷(2.25÷10 10/11)]
[(10.75-4 11/12)×2 7/11]÷[(1.125+1/12)÷(2.25÷10 10/11)]
[(10.75-4 11/12)×2 7/11]÷[(1.125+1/12)÷(2.25÷10 10/11)]
[(10.75-4 11/12)×2 7/11]÷[(1.125+1/12)÷(2.25÷10 10/11)]
=[（10¾-4 11/12）×2 7/11]÷[（1 1/8+1/12）÷（9/4÷120/11）]
=（5 10/12 ×2 7/11）÷[（9/8+1/12）÷（9/4÷120/11）] (把除法转化为乘法）
=70/12 ×29/11 ×24/29×4/9×11/120 （约分）
=14/27
太难了，看不出
4 11/12是4又12分子11吧？
[(10.75-4 11/12)×2 7/11]÷[(1.125+1/12)÷(2.25÷10 10/11)]
=[(43/4-59/12)X29/11]÷[(9/8+1/12)÷(9/4÷120/11)]
=[(129/12-59/12)X29/11]÷[(27/24+2/24)÷(9/4X11/120)]
=[(70/12)...
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4 11/12是4又12分子11吧？
[(10.75-4 11/12)×2 7/11]÷[(1.125+1/12)÷(2.25÷10 10/11)]
=[(43/4-59/12)X29/11]÷[(9/8+1/12)÷(9/4÷120/11)]
=[(129/12-59/12)X29/11]÷[(27/24+2/24)÷(9/4X11/120)]
=[(70/12)X29/11]÷[(29/24)÷(99/480)]
=[(35/6)X29/11]÷[(29/24)÷(33/160)]
=[(35/6)X29/11]÷[(29/24)X(160/33)]
=[(35/6)X29/11]÷[(29/8)X(20/33)]
=[(35/6)X29/11]X[(8/29)X(33/20)]
=(35/6)X(29/11)X(8/29)X(33/20)
=(35X29X8X33)/(6X11X29X20)
=(35X8X3X11)/(6X11X20)
=(5X8X3)/(6X20)
=(5X8)(2X20)
=1
收起
约等于-1.16978。分数为-34263/29290。不过估计是你把题打错了吧