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(1x2x3x4x......x9x10x11)除(27x25x24x22)

(1x2x3x4x......x9x10x11)÷(27x25x24x22) =(1x2x3x4x......x9x10x11)÷(3x9x5x5x4x6x2x11) =(1x2x3x4x......x9x10x11)÷(2x3x4x5x6x9x11x5) =(7x8x10)÷5 =112

原式=[1×(2×11)×(3×9)×(4×6)×7×8×(5×5)×2]÷(27×25×24×22)=(22×27×24×25×7×8×2)÷(22×27×24×25)=(22÷22)×(27÷27)×(24÷24)×(25÷25)×7×8×2=112

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