(-2m²)³×3n²×n³÷(-3m³n²)²等于几?

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(-2m²)³×3n²×n³÷(-3m³n²)²等于几?
(-2m²)³×3n²×n³÷(-3m³n²)²等于几?

(-2m²)³×3n²×n³÷(-3m³n²)²等于几?
(-2/3)n