a.2/10 +4/15 =14/30 D hay S b/5/12 + 3/36 = 18/36 = 1/2 D hay S 23/09/2021 Bởi Kinsley a.2/10 +4/15 =14/30 D hay S b/5/12 + 3/36 = 18/36 = 1/2 D hay S
Đáp án: `a) 2/10 + 4/15 = 6/30 + 8/30 = 14/30 = 7/15` Nên `2/10 + 4/15 = 14/30` `⇒ Đ` `b) 5/12 + 3/36 = 15/36 + 3/36 = 18/36 = 1/2` Nên `5/12 + 3/36 = 18/36 = 1/2` `⇒ Đ` Bình luận
$#Dino$ `a) 2/10+4/15=6/30+8/30=14/30` `to` Đúng `b) 5/12+3/36=15/36+3/36=18/36=1/2` `to ` Đúng Bình luận
Đáp án:
`a) 2/10 + 4/15 = 6/30 + 8/30 = 14/30 = 7/15`
Nên `2/10 + 4/15 = 14/30`
`⇒ Đ`
`b) 5/12 + 3/36 = 15/36 + 3/36 = 18/36 = 1/2`
Nên `5/12 + 3/36 = 18/36 = 1/2`
`⇒ Đ`
$#Dino$
`a) 2/10+4/15=6/30+8/30=14/30`
`to` Đúng
`b) 5/12+3/36=15/36+3/36=18/36=1/2`
`to ` Đúng