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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

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

27/25 1/21 4 7/50 5/9 27/160 2.1.38×1/6=23/100(万立方米)

3又1/3×(-8/35+2/27÷7/9-2/3) =3又1/3×(-8/35+2/21-2/3) =3又1/3×(-2/15-2/3) =10/3×(-4/5) =-8/3

(2/3-4/9+5/27)x(-27)-11/17x8-(-8)x1/17 =-2/3×27+4/9×27-5/27x27-(11/17-1/17)x8 =-18+12-5-10/17×8 =-11-4又12/17 =-15又12/17

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