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thanhtam7486
2 năm trước
So sánh số hữu tỉ sau bằng cách nhanh nhất a/$\frac{-3}{20}$ và $\frac{51}{1000}$ b/$\frac{-99}{100}$ và $\frac{152}{-151}$ c/$\frac{-17}{23}$ và $\frac{-171717}{232323}$
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