Question

So sánh nhờ số trung gian: a) 15/ 59 và 24/97 b) 12/47 và 19/77

ai giúp mik với ạ , làm ơn

Answer 1

a) \(\dfrac{15}{59}>\dfrac{15}{60}=\dfrac{1}{4}\)

\(\dfrac{24}{97}< \dfrac{24}{96}=\dfrac{1}{4}\)

\(\Rightarrow\dfrac{15}{59}>\dfrac{24}{97}\)

b) \(\dfrac{12}{47}>\dfrac{12}{48}=\dfrac{1}{4}\)

\(\dfrac{19}{77}< \dfrac{19}{76}=\dfrac{1}{4}\)

\(\Rightarrow\dfrac{12}{47}>\dfrac{19}{77}\)

Answer 2

a: \(\dfrac{15}{59}>\dfrac{15}{60}=\dfrac{1}{4}\)

\(\dfrac{1}{4}=\dfrac{24}{96}>\dfrac{24}{97}\)

Do đó: \(\dfrac{15}{59}>\dfrac{24}{97}\)

 

Answer 3

\(\dfrac{15}{59}>\dfrac{15}{60}=\dfrac{1}{4}=\dfrac{24}{96}>\dfrac{24}{97}\)

\(\dfrac{12}{47}>\dfrac{12}{48}=\dfrac{1}{4}=\dfrac{19}{76}>\dfrac{19}{77}\)

tik mik nha

Answer 4

b: Ta có:\(\dfrac{12}{47}>\dfrac{12}{48}=\dfrac{1}{4}\)

\(\dfrac{1}{4}=\dfrac{19}{76}>\dfrac{19}{77}\)

Do đó: \(\dfrac{12}{47}>\dfrac{19}{77}\)