分數x分數的 實做 (真分數)

Discover the rules of fraction multiplication using visual models in this activity.
分數相乘
Putting It All Together
[i]Answer these open ended questions on your own or with others to form deeper math connections. [/i]
Describe to a friend how you can multiply [math]\frac{4}{5}\cdot9[/math].
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Information: 分數x分數的 實做 (真分數)