(1×2×4+2×4×8+3×6×12)÷(1×3×9+2×6×18+3×9×27)
(1×2×4+2×4×8+3×6×12)÷(1×3×9+2×6×18+3×9×27)
1*3*9+2*6*18+3*9*27+4*12*36分之1*2*4+2*4*8+3*6*12+4*8*16
(1×2×4+2×4×8+3×6×12+……+6×12×24)÷(1×3×9+2×6×18+3×9×27+……+6×18
(1*6*9+2*12*18+3*16*27+...+100*600*900)÷(1*2*3+2*4*6+3*6*9+.
8/9x=4/5 2/3x÷1/4=12 3/4x÷1/6=18 (10/9-2/3)x=
1*2*4+2*4*8+3*6*12+…+1000*2000*4000分之1*3*9+2*6*18+3*9*27+…10
计算(1*2*4+2*4*8+3*6*12+.)/(1*3*9+2*6*18+3*9*27+.)写计算过程
计算1×2×4+2×4×8+3×6×12+…/1×3×9+2×6×18+3×9×27﹢…
1×2×4+2×4×8+3×6×12+...+100×200×400分之1×3×9+2×6×18+3×9×27+...+
1×3×9+2×6×18+3×9×27+,+100×300×900分之1×2×4+2×4×8+3×6×12+.+100×
求1*3*9+2*6*18+3*9*27+···+100+200+300/1*2*4+2*4*8+3*6*12+···+
1×3×9+2×6×18+3×9×27+.+100×300×900 分之 1×2×4+2×4×8+3×6×12+.+10