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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

三分之二除以括号1-1/4乘以七分之一括回减十八分之七脱式计算 三分之二除以括号1-1/4乘以七分之一括回减十八分之七 =2/3÷(1-1/4*1/7)-7/18 =2/3÷27/28-7/18 =2/3*28/27-7/18 = 无法约分的,核实算式

2/5×[1/5+8/21÷(4/7)] =2/5x(1/5+2/3) =2/5x(13/15) =26/75

80/72

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

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.

24×(1/4+5/6-7/8) =6+20-21 =5

1. 1/8*14/8/7 =7/4/8/7 =7/4*7/8 =49/*32 2. 9/14/(6/5-3/4)*7/24 =9/14/9/20*7/24 =9/14*20/9*7/24 =20/14*7/24 =5/12 第三小题题目再发准确点行吗

(-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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