计算(-3m^2/4n^2)/6mn^4
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计算(-3m^2/4n^2)/6mn^4
(-3m^2/4n^2)/6mn^4
=-3m^2/(4n^2 * 6mn^4)
=-3m^2/(24mn^6)
=-m/8n^6
=-3m^2/(4n^2 * 6mn^4)
=-3m^2/(24mn^6)
=-m/8n^6
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