`(1 - 1 1/7 + 8/11 + 8/15)/(0,875 - 1 + 7/11 + 7/15)`
` = (8/8 - 8/7 + 8/11 + 8/15)/(7/8 - 7/7 + 7/11 + 7/15)`
` = (8 (1/8 - 1/7 + 1/11 + 1/15))/(7 (1/8 - 1/7 + 1/11 + 1/15))`
` = 8/7`
Đáp án + Giải thích các bước giải:
`(1-1 1/7+8/11+8/15)/(0,875-1+7/11+7/15)`
`=(8/8-8/7+8/11+8/15)/(7/8-7/7+7/11+7/15)`
`=(8(1/8-1/7+1/11+1/15))/(7(1/8-1/7+1/11+1/15))`
`=8/7`
Viết câu mở đầu và câu kết luận cho topic: Should students study in group? NHanh giúp mk trong 10p nữa vs ạ
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giải thích chi tiết có ngay hay nhất nhé
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