计算要过程-3m^2/4n^2÷3m/9n^4÷(-m^5/4n^2)
问题描述:
计算要过程-3m^2/4n^2÷3m/9n^4÷(-m^5/4n^2)
答
原式 = (-3m^2)*(9n^4)/3m*(4n^2)÷(-m^5/4n^2)
= (-3m^2)*(9n^4)*(4n^2)/3m*(4n^2)*(-m^5)
= 9n^4/m^4