昆山十千网络公司:14.4O(2.6/1.2)=?

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14.4(2.6/1.2)=31.2

4O(2.6/1.2)=260/3
题不是很清楚,所以写2个!

解:
14.40×(2.6÷1.2)
=72/5×13/6
=156÷5
=31.2

14.40×(2.6÷1.2)
=72/5×13/6
=156÷5
=31.2