7/3÷（4/5+1/4）
=7/3÷（16/20+5/20）
=7/3÷21/20
=7/3×20/21
=20/9
icult math problems in different ways. Our hearts are free. We imagine ourselves to be great men. icult math problems in different ways. Our hearts are free. We imagine ourselves to be great men.
7/3÷（16/20+5/20）
=7/3*20/21
=20/9
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