20又1/5-7/25/10又3/8+15又9/16
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 01:13:23
![20又1/5-7/25/10又3/8+15又9/16](/uploads/image/z/1769112-0-2.jpg?t=20%E5%8F%881%2F5-7%2F25%2F10%E5%8F%883%2F8%2B15%E5%8F%889%2F16)
20又1/5-7/25/10又3/8+15又9/16
20又1/5-7/25/10又3/8+15又9/16
20又1/5-7/25/10又3/8+15又9/16
(20又1/5-7/25)/(10又3/8+15又9/16)
=(101/5-7/25)/(83/8+249/16)
=(498/25)/(415/16)
=498*16/25*415
=7968/10375