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P3 分數自學練習 1

共有20道題目。 鳴謝 / Acknowledgement: Some pictures are taken from mathe-wiki.com's applet "Expanding Fractions" (https://www.geogebra.org/m/WhkBdgTd) 操件課件時遇到問題,可考慮重新載入網頁 (Reload the webpage)。