Toán Lớp 5: Mẫu 400 m = $\frac{400}{1000}$ km = $\frac{2}{5}$ km
5 dm = $\frac{x}{y}$ m = $\frac{x}{y}$ m
25 cm = $\frac{x}{y}$ m = $\frac{x}{y}$ m
125 mm = $\frac{x}{y}$ m =$\frac{x}{y}$ m
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Toán Lớp 5: Mẫu 400 m = $\frac{400}{1000}$ km = $\frac{2}{5}$ km
5 dm = $\frac{x}{y}$ m = $\frac{x}{y}$ m
25 cm = $\frac{x}{y}$ m = $\frac{x}{y}$ m
125 mm = $\frac{x}{y}$ m =$\frac{x}{y}$ m
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