分數的認識
認識假分數
最簡分數
Comparing fractions using number lines and rectangles
Comparing fractions using number lines and rectangles
Fraction Addition
Acknowledgement: Inspired by John Ulbright's applet "Adding Fractions - Visual" ([url=https://ggbm.at/szwBQ7wa]https://ggbm.at/szwBQ7wa[/url])