7/2:4/5 0.5:1/4 3.2:8/7 4/5:0.5
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/09 02:02:32
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7/2:4/5 0.5:1/4 3.2:8/7 4/5:0.5
1-4-2-|-5| (-1.6)+(3.2)+|1.8|
(-4.2)+5.7+(-8.4)+10 12-(-18)+(-7)-35 6.5+24-(-16)-6.8-3.2 (-1/4)+3又2/3+1/4+(-1又2/3)(-2又1/2)+(+5/6)-(+0.5)-(-1又1/6)
化简比和求比值7/10:0.1 25:5/6 0.5:3.2 3/4:3/2
2-12/5-18/5+12/1-18/7-2又17/8=?-0.5-(-3又4/1)+2.75-(+7又2/1)=?6又4/1)+(-3.2)+(-3)+5+(-6又4/1)+(+3.2)=?做题做的脑子糊涂了一时想不起来怎么做了
-21.6+3+7.4+(-2/5);(-6/5)-7-(3.2)+(-1);0.5+(-1/4)-(-2.75)+1/2;这些题怎么算啊?这几道题我不过算请大家帮帮忙发发慈悲叻~
请问0.3/0.5=x+1/2x-1 x/5-x/6 3(x+2)=4(x+1)3.2/x=0.5 这些题咋做
2-3/1等于多少 3-9/5 2/1+0.5 7又9/4-5
计算-1又3/5-1/2+3/4-2/5+0.5-7/8
简算:3.2+3.2*7又9分之5+1又9分之4乘3又5分之1
有理数的加减法1.(-7/2)+(+6/7)+(0.5)+(+8/7) 2.4.5+(-2.5)+28/3+(-47/3)+7/3还有,3.(-5.5)-(-3.2)-(-2.5)-(-4.8) 4.(-4)+8/3+(-1/2)+(-8/3) 5.7/2+(-5/6)-(-1/3)-(+0.8)
(1)5x-4x=1 (2)4x-7x=2 (3)4.2x-3.2x=36 (4)4/3x-x=(1)5x-4x=1(2)4x-7x=2(3)4.2x-3.2x=36 (4)4/3x-x=3/1
-5.3-3.2+2.5-|-5.7|-1/2-26/5-1+16/5-4.5-7/3(+71/4)-(+6.25)-(-17/2)+(-0.75)-(+89/4)
8:12 3.2:4/5 4/9:2/3 0.5米:30厘米 求比值化简比:0.3:6/7 32:24 5.6:0.35 3/4:5/8
0.5+4/5*0.5+1/2等于多少,
35/[7/8*(1-2/7)]94/7-4/21)*420(7.08*5/7.08*5)/0.5的简便运算
(-2.8)-(+2.4)+(-1.2)-(-0.4)=?(-2.8)-(+2.4)+(-1.2)-(-0.4)=?0-(+5)-(-6.8)+(-8.8)=?(-3.2)+(5.6)-(-3.2)+4.-{(-0.5)+(-550%}-16 -3/1+4/3-6/1-2/1
化简比.30:120 1:3/4 6/10:0.1 2/3:10 2.5:6 0.5:3.2 25:5/6