3-1/4-1/3-3/4 = = = 10-7/12-5/12 = = = 5/8+4/5-3/8+1/5 = = = 紧急!

分类: 作业答案 • 2022-05-23 23:49:53

问题描述：

答

3-1/4-1/3-3/4 =5/3 10-7/12-5/12 =9 5/8+4/5-3/8+1/5 = 5/4