[2.25+0.75×(5/12×0.15)]×5/12简算怎么算?
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[2.25+0.75×(5/12×0.15)]×5/12简算怎么算?[2.25+0.75×(5/12×0.15)]×5/12简算怎么算?[2.25+0.75×(5/12×0.15)]×5/12简算怎么
[2.25+0.75×(5/12×0.15)]×5/12简算怎么算?
[2.25+0.75×(5/12×0.15)]×5/12简算
怎么算?
[2.25+0.75×(5/12×0.15)]×5/12简算怎么算?
[2.25+0.75×(5/12×0.15)]×5/12
=[9/4+3/4(5/12×3/20)]×5/12
=3/4×(3+1/16)×5/12
=3/4×49/16×5/12
=(49×5)/(16×16)
=245/256
[2.25+0.75×(5/12×0.15)]×5/12简算怎么算?
求比(数学):32:24 12/11 :24/5 1.25÷0.75 2.25:0.9
0.75+5/12=?
12/5*(0.75+45%)
5/12+x=0.75
3:12=4.75:X 42分之28=X分之0.4 10:5=X:17.5 2.25:X=0.75:6分之1X:0.25=4:3分之5 X分之0.4=7.2
求简便计算 2.25+7.6+0.75
2.5+0.75÷1.5-2.25 简便运算
x÷0.5-2.25=0.75
0.75x+0.5x=2.25
验光单上写的 R:-2.25-0.75×180
能简算的要简算三道4分之3x9分之7+0.75x9分之22.5x1.25x3249.5-17.25-2.25
(1) 0.2X+0.2*4.8=11.2(2) X/0.5-2.25=0.75(3)5*(X+2)-78=2
解方程,求x的值(写过程)0.4:x=(1+1/7):50.8:15/4=(5-x):0.75x:3/4=12:1/8(x-1):23/5=0.1:23/5
(12-0.75x):[7.8-0.75x(x-2)]=5:3怎么解
三分之一×3.14×2.25×2.25×5=?
0.75+(-2 3/4)+(0.125)+(-12 5/7)+(-4
2又56分之+0.75+1又12分之5