12又3/4÷1又1/5+5.25*1/6
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/19 23:46:22
12又3/4÷1又1/5+5.25*1/612又3/4÷1又1/5+5.25*1/612又3/4÷1又1/5+5.25*1/65.4/12 =5.4/6/2 =0.9/2 =0.45
12又3/4÷1又1/5+5.25*1/6
12又3/4÷1又1/5+5.25*1/6
12又3/4÷1又1/5+5.25*1/6
5.4/12 =5.4/6/2 =0.9/2 =0.45