Question

7/12×0.6+0.6×5/12+0.6×23/12用简便方法怎么算？

Answer 1

脱式计算7/12×0.6+0.6×5/12+0.6×23/12
解题思路:四则运算规则(按顺序计算,先算乘除后算加减,有括号先算括号,有乘方先算乘方)即脱式运算(递等式计算)需在该原则前提下进行
解题过程:
7/12×0.6+0.6×5/12+0.6×23/12

=0.6/12×(7+5+23)

=1/20×35

=7/4

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Answer 2

很高兴回答你的问题。

Answer 3

运用乘法分配率：a.b±a.c=a(b±c)
7/12×0.6+0.6×5/12+0.6×23/12
=0.6×(7/12+5/12+23/12)
=0.6×35/12
=3/5×35/12
=7/4

Answer 4

原式
=0.6×(7/12十5/12+23/12)
=0.6×35/12
=35/20
=7/4
=1.75

Answer 5

7/12×0.6+0.6×5/12+0.6×23/12
=（7/12+5/12+23/12）×0.6
=35/12×0.6
=1.75