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问题: 请告诉我怎样算文档里列示的X和/

请说出一步一步算的步骤,谢谢!

解答:

5.61% × 12/9
= 5.61% × (4/3)
= (5.61÷3×4)÷100
= 1.87×4÷100
= 7.48÷100
= 0.0748