92.7×0.07+8.3×0.07-0.07=?（2/15+4/3）÷11/9=?

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答案和解析

92.7×0.07+8.3×0.07-0.07
=(92.7+8.3-1)×0.07
=100×0.07
=7
（2/15+4/3）÷11/9
=(2/15+20/15)÷11/9
=22/15×9/11
=6/5

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