3/4除以(3/4减5/12)(用简便方法计算)

问题描述:

3/4除以(3/4减5/12)(用简便方法计算)

3/4÷(3/4-5/12)
=3/4÷(9/12-5/12)
=3/4÷1/3
=3/4*3
=9/4