7.2×61又10/3+73.8×2又5/4

来源：学生作业帮助网编辑：六六作业网时间：2024/05/14 08:41:15

7.2×61又10/3+73.8×2又5/47.2×61又10/3+73.8×2又5/47.2×61又10/3+73.8×2又5/47.2×61又10/3+73.8×2又5/4=72/10×193/3

7.2×61又10/3+73.8×2又5/4
7.2×61又10/3+73.8×2又5/4

7.2×61又10/3+73.8×2又5/4
7.2×61又10/3+73.8×2又5/4
= 72/10×193/3+738/10×13/4
=2316/5+4797/20
通分得
=(9264+4797)/20
=14061/20
=703.05

703.05