7/20+(8又1/4-6又3/5)÷2又3/4 简算快!

来源：学生作业帮助网编辑：作业帮时间：2024/04/29 14:36:13

7/20+(8又1/4-6又3/5)÷2又3/4 简算快!
7/20+(8又1/4-6又3/5)÷2又3/4 简算快!

7/20+(8又1/4-6又3/5)÷2又3/4 简算快!
7/20+(8又1/4-6又3/5)÷2又3/4
=7/20+(33/4-33/5)÷11/4
=7/20+33/4÷11/4-33/5÷11/4
=0.35+3-2.4
=3.35-2.4
=0.95

7/20+(8又1/4-6又3/5)÷2又3/4 简算 快!