递等式计算(能简算的要简算):65乘2/5+65乘3/5 75除8/9减35乘4/5 5/12+(5/6减1/12)除9/16

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/14 13:45:19
递等式计算(能简算的要简算):65乘2/5+65乘3/5 75除8/9减35乘4/5 5/12+(5/6减1/12)除9/16

递等式计算(能简算的要简算):65乘2/5+65乘3/5 75除8/9减35乘4/5 5/12+(5/6减1/12)除9/16
递等式计算(能简算的要简算):65乘2/5+65乘3/5 75除8/9减35乘4/5 5/12+(5/6减1/12)除9/16

递等式计算(能简算的要简算):65乘2/5+65乘3/5 75除8/9减35乘4/5 5/12+(5/6减1/12)除9/16
解: 65乘2/5+65乘3/5
=65×(2/5+3/5)
=65×1
=65
75除8/9减35乘4/5
=75÷8/9-35×4/5
=75×9/8-35×4/5
=675/8-28
=675/8-224/8
=451/8
5/12+(5/6减1/12)除9/16
=5/12+9/12×16/9
=5/12+16/12
=21/12
=7/4
祝你开心

65乘2/5+65乘3/5
=65*(2/5+3/5)
=65
75除8/9减35乘4/5
=75×9/8-28
=675/8-224/8
=451/8
5/12+(5/6减1/12)除9/16
=5/12+9/12÷9/16
=5/12+16/12
=21/12
=7/4