简算 (7/4+9/8)*25/2
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/01 16:27:15
简算 (7/4+9/8)*25/2
![简算 (7/4+9/8)*25/2](/uploads/image/z/16416834-42-4.jpg?t=%E7%AE%80%E7%AE%97+%287%2F4%2B9%2F8%29%2A25%2F2)
如题
=(2-1/4+1+1/8)*(12+1/2)
=(3-1/8)*(12+1/2)
=36+3/2-3/2-1/16
=36-1/16
=35+15/16
=(2-1/4+1+1/8)*(12+1/2)
=(3-1/8)*(12+1/2)
=36+3/2-3/2-1/16
=36-1/16
=35+15/16