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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”。

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...

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

10又3/4+0.25-1/7 =10.75+0.5-1/7 =11-1/7 =10又6/7

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

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

不对,应该是6十4等于10,10减3等于7,即6+4-3=7。

5/10,3/14,8,19/30,7/18,11/10。

3/10×[7/8÷(3/5-1/4)] =3/10×[7/8÷7/10] =3/10×5/4 =3/8

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

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