Question

A=196/197+197/198,B=196+197/197+198 trong hai số A va B sô nào lớn hơn

Answer 1

\(A=\dfrac{196}{197}+\dfrac{197}{198}\)

\(B=\dfrac{196+197}{197+198}\)

\(Ta\) \(có\)

\(B=\dfrac{196+197}{197+198}=\dfrac{196}{197+198}+\dfrac{197}{197+198}\)

\(Ta\) \(thấy\)

\(\dfrac{196}{197+198}< \dfrac{196}{197}\)

\(\dfrac{197}{197+198}< \dfrac{197}{198}\)

\(=>\dfrac{196}{197+198}+\dfrac{197}{197+198}< \dfrac{196}{197}+\dfrac{197}{198}\)

\(=>\dfrac{196+197}{197+198}< \dfrac{196}{197}+\dfrac{197}{198}\)

\(=>B< A\)

Answer 2

A=1,899873353
B=0,9949367089
=>A>B

Answer 3

hai số bằng nhau