3/8乘37+0.375乘63 77*75/76

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3/8乘37+0.375乘6377*75/763/8乘37+0.375乘6377*75/763/8乘37+0.375乘6377*75/763/8等于0.375既0.375*37+0.375*63=0.

3/8乘37+0.375乘63 77*75/76
3/8乘37+0.375乘63 77*75/76

3/8乘37+0.375乘63 77*75/76
3/8等于0.375既0.375*37+0.375*63=0.375*(37+63)=37.5