A =(2.3.5+4.9.25+6.9.35+10.21.40) : (2.3.7+4.9.35+6.9.49+10.21.56) A bằng ?

Question

A =(2.3.5+4.9.25+6.9.35+10.21.40) : (2.3.7+4.9.35+6.9.49+10.21.56)
A bằng ?

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Cora 1 tuần 2021-12-03T22:38:57+00:00 1 Answers 2 views 0

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    2021-12-03T22:40:44+00:00

    `A=(2.3.5+4.9.25+6.9.35+10.21.40):(2.3.7+4.9.35+6.9.49+10.21.56)`

    `⇒A=(2.3.5+4.9.5.5+6.9.7.5+10.21.8.5):(2.3.7+4.9.5.7+6.9.7.7+10.21.8.7)`

    `⇒A=[5.(2.3+4.9.5+6.9.7+10.21.8)]:[7.(2.3+4.9.5+6.9.7+10.21.8)]`

    `⇒A=5:7`

    `⇒A=5/7`

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