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])

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