a: \(=\dfrac{3}{17}\left(\dfrac{6}{29}-\dfrac{35}{29}\right)+2022+\dfrac{3}{17}\)
=-3/17+3/17+2022
=2022
b: \(=\dfrac{5}{6}-\dfrac{5}{6}\cdot\dfrac{1}{5}=\dfrac{5}{6}\cdot\dfrac{4}{5}=\dfrac{4}{6}=\dfrac{2}{3}\)
c: \(=9.5+12.5-14=22-14=8\)
d: 60/72=5/6
24/36=2/3=4/6
=>60/72>24/36
e: -13/18=-26/36
-7/12=-21/36
mà -26<-21
nên -13/18<-7/12
f: 4/15=24/90
7/18=35/90
mà 24<35
nên 4/15<7/18
f: 123/321<1
1<312/213
=>123/321<312/213=-312/-213
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