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8/27除以x等于2/9怎么算?

8/27÷2/9 =8/27×9/2 =4/3

8/27➗2/9=8/27乘9/2=4/3

8x27÷9 =8x(27÷9) =8x3 =24

解:-9-27/8×2/9-6×-27/8 =-9-(27/8×2/9)+6×27/8 =-9-3/4+3*27/4 =-9-3/4+81/4 =-36/4-3/4+81/4 =-39/4+81/4 =42/4=21/2=10.5

2.78+27.8×9.9 =2.78+2.78x99 =2.78x(1+99) =2.78x100 =278

9×8/27 =72/27 =(72÷9)/(27÷9) =8/3 =(6+2)/3 =6/3+2/3 =2+2/3 即二又三分之二

括号8/9+3分之2-2/27括号乘27 (8/9+2/3-2/27)x27 =8/9x27+2/3x27-2/27x27 =24+18-2 =42-2 =40

如果是:(8/9+4/27)*27的话,那么相当于: (24/27+4/27)*27=28。

一个数的九分之二是27分之8,这个数就是(8/27)/(2/9)=4/3

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