a)
Ta thấy:
\(\dfrac{1}{1010}>0\)
\(-\dfrac{7}{19}< 0\)
=> \(\dfrac{1}{1010}>\dfrac{-7}{19}\)
`a)1/2010 > 0` `[-7]/19 < 0`
`=>1/2010 > [-7]/19`
`b)[-3737]/4141=[-3737:101]/[4141:101]=[-37]/41`
`=>[-3737]/4141=[-37]/41`
`c)497/[-499] > -1` `[-2345]/2341 < -1`
`=>497/[-499] > [-2345]/2341`