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六分之五乘九分之四除以三分之十加三分之七的脱式计算

七分之三乘以五分之一减七分之四除以五。 =3/7x1/5-4/7x1/5 =1/5x(3/7-4/7) =-1/5x1/7 =-1/35 =-35分之1 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,您的采纳是我答题的动力,...

3/4×9÷3/5 =27/4÷3/5 =45/4

(5/9+3/4+7/12)×36 =5/9×36+3/4×36+7/12×36 =20+27+21 =68 56×4/57 =(57-1)×4/57 =57×4/57-4/57 =4-4/57 =3又53/57

3/5x6/7-6/7x9/50 =6/7x(3/5-9/50) =6/7x(30/50-9/50) =6/7x21/50 =9/25

脱式计算 3/7×5/3×4/5 =5/7×4/5 =4/7

八分之五乘四分之三乘二十五分之九脱式计算 =15/32×9/25 =27/160

8-8/9÷6/5×3/16 =8-8/9×5/6×3/16 =8-1/6×5/6 =8-5/36 =7又31/36

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