Mathematics
Junior High
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(4a−6b)÷0.4はどうやって解けばいいですか?

Answers

Answers

÷0.4=÷2/5=×5/2だから

(4a−6b)÷0.4
=(4a−6b)×5/2
=4a×5/2−6b×5/2
=こたえ

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