51又2/3×3/5+71又3/4÷7/4+91又4/5×5/9
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 12:47:12
![51又2/3×3/5+71又3/4÷7/4+91又4/5×5/9](/uploads/image/z/245320-16-0.jpg?t=51%E5%8F%882%2F3%C3%973%2F5%2B71%E5%8F%883%2F4%C3%B77%2F4%2B91%E5%8F%884%2F5%C3%975%2F9)
51又2/3×3/5+71又3/4÷7/4+91又4/5×5/9
51又2/3×3/5+71又3/4÷7/4+91又4/5×5/9
51又2/3×3/5+71又3/4÷7/4+91又4/5×5/9
51又2/3×3/5+71又3/4÷7/4+91又4/5×5/9
=(50+5/3)×3/5+(70+7/4)×4/7+(90+9/5)×5/9
=30+1+40+1+50+1
=123
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