Bài 8 :
a)
Ta có :
\(1-\dfrac{23}{24}=\dfrac{1}{24}\)
\(1-\dfrac{25}{26}=\dfrac{1}{26}\)
\(Mà\) \(\dfrac{1}{24}>\dfrac{1}{26}\)
\(\rightarrow1-\dfrac{23}{24}>1-\dfrac{1}{26}\)
\(\rightarrow\dfrac{23}{24}< \dfrac{25}{26}\)
b)
Ta có :
\(\dfrac{37}{36}-1=\dfrac{1}{36}\)
\(\dfrac{38}{37}-1=\dfrac{1}{37}\)
\(Mà\) \(\dfrac{1}{36}>\dfrac{1}{37}\)
\(\rightarrow\dfrac{37}{36}-1>\dfrac{38}{37}-1\)
\(\rightarrow\dfrac{37}{36}>\dfrac{38}{37}\)
\(a)\) \(\dfrac{23}{24}\) và \(\dfrac{25}{26}\)
Ta có: \(1-\dfrac{23}{24}=\dfrac{1}{24};\) \(1-\dfrac{25}{26}=\dfrac{1}{26}\)
Vì \(\dfrac{1}{24}>\dfrac{1}{26}\) nên \(\dfrac{23}{24}< \dfrac{25}{26}\)
\(b)\) \(\dfrac{37}{36}\) và \(\dfrac{38}{37}\)
Ta có: \(\dfrac{37}{36}-1=\dfrac{1}{36};\) \(\dfrac{38}{37}-1=\dfrac{1}{37}\)
Vì \(\dfrac{1}{36}>\dfrac{1}{37}\) nên \(\dfrac{37}{36}>\dfrac{38}{37}\)