5.4除(1.5—9)等于几分之几

5.4除(1.5—9)等于几分之几
2025-12-15 03:10:30
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回答1:

5.4除(1.5—9)等于几分之几
5.4除(1.5—9)
=5.4÷(-7.5)
=27/5÷(-15/2)
=-27/5×2/15
=-9/5×2/5
=-18/25
=-25分之18