Question

9/4减小括号1/4+1/5快起来等于

Answer 1

9/4减小括号1/4+1/5快起来等于

9/4-（1/4+1/5）
=9/4-1/20
=45/20-1/20
=44/20
=11/5
希望能帮到你！

5/8减小括号1/8+1/9快起来等于几

5/8减小括号1/8+1/9快起来等于几
5/8-(1/8+1/9)
=5/8-1/8-1/9
=4/8-1/9
=1/2-1/9
=7/18

9/10减去括号2/5+1/4括起来等于几分之几

9/10-（2/5+1/4）
=9/10-2/5-1/4
=18/20-8/20-5/20
=10/20-5/20
=5/20
=1/4
结果是4分之1

九乘括号9/4-x括起来等于9/7

9×(9/4－X)＝9/7
解：
9/4－X＝1/7
X＝9/4－1/7＝59/28＝2又3/28

12×小括号3/4-2分之1+5/56括起来等于多少

12×（4分之3-2分之1+56分之5）
=12×4分之3-12×2分之1+12×56分之5
=9-6+14分之15
=3+1又14分之1
=4又14分之1

11/10-括号1/4+1/5等于

11/10-(1/4+1/5)
=11/10-9/20
=(22-9)/20
=13/20

60除以小括号1-5/11快起来计算

解：依题意得算式，
60÷（1-11分之5）
=60÷11分之6
=60×6分之11
=110
即60÷（1-11分之5）=110

9/4减(1/4+1/5)

9/4-(1/4+1/5)
=9/4-1/4-1/5
=2-1/5
=1又4/5
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七分之二减小括号里2/7-1/8括号起来等于多少

2/7-(2/7-1/8)
=2/7-2/7+1/8
=0+1/8
=1/8

1800×小括号1+28/百括起来等于多少

1800x（1+28%）
=1800x1.28
=18x128
=20x128-2x128
=2560-256
=2304