#38.有理数と無理数、終わらない小数の正体

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This episode was published on November 12, 2025.

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from まなび未来ラジオ · host YONE式

有理数と無理数――聞いたことはあるけれど、説明しようとすると意外と難しい言葉。「分数にできる数＝有理数」「分数にできない数＝無理数」有限小数・循環小数・無限小数の整理から、πや√2がなぜ“無理数”と呼ばれるのかまでを、中3数学の「平方根」単元につながる形で、スッキリ解説します。BGM: MusMus｜HP: https://yoneshiki.co.jp

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#38.有理数と無理数、終わらない小数の正体

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