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11/8一[3/4一(5/16一1/4)]等于多少?要过程

1. x-4/3=1/2 x=11/6 2. 3/4*3/5+3/4*2/5 =9/20+6/20 =3/4 3. 52*1/9+47÷9+1/9 =(52+47+1)/9 =100/9

8-5-4-1=3-4-1=-1-1=-2

脱式计算11/16-(3/8-1/4)=11/16-(3/8-2/8)=11/16-2/16=9/16

1又4/5 = 9/53/8 - 9/5=15/40 - 72/40 = -57/40

一、计算题要过程 1/4÷(3-8/11-3/11) = (1/4)÷2 = 1/8 二、解方程要过程 7/12+5/6X=1 ==> 5/6x = 1 - 7/12 ==> 5/6x = 5/12 ==> x = 1/2 三、先化简比,再求比值 15:3 0.6:0.16 15 :3 = 5 : 1 = 5 0.6 : 0. 16 = 15 : 4 = 15/4

=5/16*4/7+5/16+3/7*5/16=5/16*(4/7+1+3/7)=5/16*2=5/8 (8分之5)

55分之216

令 S= 1/2+3/4+4/8+5/16++10/512 + 11/1024 则2S=1+3/2 +4/4+5/8+6/16++11/512错项相减 S=1+1+ 1/4+1/8++1/512 -11/1024 =1545/1024

3/5+1/4=20分之17 你好,本题已解答,如果满意 请点右上角“采纳答案”.

1英寸=25.4mm;1/8=3.175mm.通常就按以上关系换算就可以了!3/4=6/8*3.175=19.05mm;1/4=2/8=3.175*2=6.35mm1又1/2=25.4+25.4*1/2=38mm.

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