⑴A×1/4＋B×3/4 （4は1＋3）
⑵- A ＋ 2B
⑶ A×1/3＋ B×1/3 ＋ C×1/3
https://mathtrain.jp/naibungaibun
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⑴A×1/4＋B×3/4 （4は1＋3）
⑵- A ＋ 2B
⑶ A×1/3＋ B×1/3 ＋ C×1/3
https://mathtrain.jp/naibungaibun
↑参照
Users viewing this question
are also looking at these questions 😉
