Bài 6: So sánh phân số

-5/8=-35/56

-6/7=-48/56

mà -35>-48

nên -5/8>-6/7

\(\dfrac{-5}{8}và\dfrac{6}{-7}=\dfrac{-5}{8}và\dfrac{-6}{7}=\dfrac{-35}{56}và\dfrac{-48}{56}=>\dfrac{-35}{56}>\dfrac{-48}{56}hay\dfrac{-5}{8}>\dfrac{6}{-7}\)

-5/8=-45/56

6/-7=-48/56

->-5/8>6/-7

Giai chi tiết giúp mik ạ

e: \(10A=\dfrac{10^{2021}+10}{10^{2021}+1}=1+\dfrac{9}{10^{2021}+1}\)

\(10B=\dfrac{10^{2022}+10}{10^{2022}+1}=1+\dfrac{9}{10^{2022}+1}\)

mà \(10^{2021}+1< 10^{2022}+1\)

nên 10A<10B

hay A<B

a: \(\dfrac{-10}{6}< \dfrac{x}{2}< -\dfrac{7}{6}\)

\(\Leftrightarrow\dfrac{-10}{6}< \dfrac{3x}{6}< \dfrac{-7}{6}\)

=>3x=-9(vì x là số nguyên)

hay x=-3

b: \(\dfrac{-3}{4}< \dfrac{x}{6}< \dfrac{-1}{2}\)

\(\Leftrightarrow\dfrac{-9}{12}< \dfrac{2x}{12}< \dfrac{-6}{12}\)

\(\Leftrightarrow2x=-8\)

hay x=-4

c: \(\Leftrightarrow\dfrac{-12}{27}< \dfrac{-12}{4x}< \dfrac{-12}{30}\)

=>4x=28

hay x=7

giải chi tiết cho mik ạ 

giúp mình

\(-\dfrac{10}{6}< -\dfrac{3}{2}< -\dfrac{7}{6}\)

\(\dfrac{-3}{2}\)

chệu lun á khó quấ

helpppppppppppp

-17/10

mng ơi giúp e với ạ

cần gấppppppppppppppppppp

15/10 hay 3/2 nhé

\(1,5=\dfrac{15}{10}=\dfrac{3}{2}\)

\(=\dfrac{3}{2};\dfrac{15}{10};\dfrac{20}{15};......\)

-4/5=-20/25

-4/5=-20/25 vì -4x25 = -20 x 5

a) 5/-6 < 5/-7    b) -12/15 < 1/5   c) -3/8 > -5/6   d)   -14/21 < 60/-72

a)5/-6>5/-7 nhé vì tử = nhau mà -6>-7

b)-12/15 và 3/5=>3>-12=>-12/15<3/5

c)-3/8>-5/6

d)-14/21>-60/72 nhé