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\(\dfrac{-5}{8}và\dfrac{6}{-7}=\dfrac{-5}{8}và\dfrac{-6}{7}=\dfrac{-35}{56}và\dfrac{-48}{56}=>\dfrac{-35}{56}>\dfrac{-48}{56}hay\dfrac{-5}{8}>\dfrac{6}{-7}\)
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c , Ta có : 201/195 - 1 = 6/195
203/197 - 1 = 6/197
Vì 6/195 > 6/ 197 nên 201/195>203/197
d , Ta có : 1998/1995 - 1 = 3/1995
2005/2002 - 1 = 3/2002
Vì 3/1995 > 3/2002 nên 1998/1995 > 2005/2002
c , Ta có : 201/195 - 1 = 6/195
203/197 - 1 = 6/197
Vì 6/195 > 6/ 197 nên 201/195>203/197
d , Ta có : 1998/1995 - 1 = 3/1995
2005/2002 - 1 = 3/2002
Vì 3/1995 > 3/2002 nên 1998/1995 > 2005/2002
Đúng 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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\(\frac{40}{57}< \frac{40}{55}< \frac{41}{55}\)
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