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3/4减3/10减1/4加7/10等于多少

3/4-3/10-1/4+7/10 =(3/4-1/4)+(7/10-3/10) =1/2+2/5 =9/10 你好,本题已解答,如果满意 请点右下角“采纳答案”。

7/10-1/4+3/10-3/4 =7/10+3/10-(1/4+3/4) =1-1 =0

解:7/10减(3/4减3/10)等于( 0.25 ) ∵已知需求出7/10减(3/4减3/10)等于多少 7/10 - (3/4 - 3/10) = 7/10 - [(3×5)/(4×5) - (3×2)/(10×2)] = 7/10 - ( 15/20 - 6/20 ) = 7/10 - 9/20 = (7×2)/(10×2) - 9/20 = 14/20 - 9/20...

七减1/10加3/10等于多少化成最简分数 七减1/10加3/10 =7+3/10-1/10 =7+1/5 =7又1/5

解: (-16又3/4)-(-10又1/4)-(+1又1/2) =-16又3/4+10又1/4-1又1/2 =(-16+10-1)+(-3/4+1/4-1/2) =-7+(-2/4-1/2) =-7+(-1/2-1/2) =-7-1 =-8

10又3/4+0.25-1/7 =11-1/7 =10又6/7

7-6/13=85/13(10/9)÷(9/8)=80/81(3/4)X4÷(3/4)X4=16(3/4)X4÷[(3/4)X4]=1

x-(3/4-1/2)=7/10 x-1/4=7/10 x=1/4+7/10 x=19/20

3/10 35/36 1 17/18 23/40

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