a: \(\frac{25}{39}<\frac{39}{39}=1;1=\frac{38}{38}<\frac{41}{38}\)
Do đó: \(\frac{25}{39}<\frac{41}{38}\)
b: \(\frac{-18}{17}<\frac{-17}{17}=-1;-1=\frac{-100}{100}<\frac{-99}{100}\)
Do đó: \(\frac{-18}{17}<-\frac{99}{100}\)
c: \(\frac{-17}{-35}=\frac{17}{35}>0;0>-\frac{43}{85}\)
Do đó: \(\frac{-17}{-35}>-\frac{43}{85}\)
d: \(-0,76=\frac{-19}{25}\)
Ta có: 25<28
=>\(\frac{19}{25}>\frac{19}{28}\)
=>\(-\frac{19}{25}<-\frac{19}{28}\)
=>-0,76<-19/28
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