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括号1/10+1/4括号乘以1/7怎么脱式计算

(1/10+1/4)x1/7 =(2/20+5/20)x1/7 =7/20x1/7 =1/20 希望能帮到你

1/2 2/3×括号3/4-1/6括号除以7/9脱式计算 解: 1/2+ 2/3×(3/4-1/6)除以7/9 =1/2+2/3×7/12÷7/9 =1/2+1/2 =1

(131-79)*19/38 =52*19/38 =52*1/2 =26

7/8-括号5/12+1/6括回脱式计算 (7/8)-(5/12+1/6) =(7/8)-(7/12) =(21/24)-(14/24) =7/24.

八除以1+7括号括回列脱式计算怎么做 8÷(1+7) =8÷8 =1. 请采纳,谢谢.

八分之7-括号1/3-4分之一括号怎么写脱式计算 八分之7-括号1/3-4分之一括号 =7/8-1/12 =21/24-2/24 =19/24

(-1-1/4×8/9)÷7/9 =(-1×9/7)-(1/4×9/7)×(8/9×9/7) =-9/7-9/28×8/7 =-36/28-9/28×8/7 =-36/28-36/98 =-63/49-18/49 =-81/49

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