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1/2+2/3×括号3/4%1/6.脱式计算,能简便的要简便怎...

1/2+2/3×括号3/4-1/6。脱式计算 解:采用分配律, 原式=1/2+2/3x(3/4-1/6) =1/2+2/3x3/4-2/3x1/6 =1/2+1/2-1/9 =1-1/9 =8/9

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

1# 2/3(5/7+2/7) =2/3 2# 3/4*1/9+1/4*1/9 =(3/4+1/4)*1/9 =1/9 3# 5-(6/7*14/3+3/16) =5-4-3/16 =13/16

解: (1/6+3/4-2/3)*12 =1/6 *12+3/4 *12 -2/3 *12 =2+9-8 =11-8 =3

你的题目可能没写清楚? 你看下面是不是你的题目。 (1/2-1/3)×(3/4)÷(1/4) =(3/6-2/6)×3 =3/6 =1/2

(1)13.6×3-40.6÷2,=40.8-20.3,=20.5;(2) 99×0.75+ 1 4 ×99 ,=99×(0.75+0.25),=99×1,=99;(3) ( 5 6 - 5 8 )×24 ,= 5 6 ×24- 5 8 ×24,=20-15,=5;(4) 121×100 1 121 ,=121×(100+ 1 121 ),=121×100+121× 1 121 ,=12100+1...

(2/3-2/15)×6-1/5 =2/3×6-2/15×6-1/5 =4-4/5-1/5 =4-(4/5+1/5) =4-1 =3

都可以约掉,最后直接1/6

先彩钠如何,我帮你解提这边谢谢。

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