Question

tìm nhanh kết quả của phép tính sau : 
1/2 x 2/3 x 3/4 x 4/5 x 5/6

Answer 1

\(\dfrac{5}{24}\)

Answer 2

\(=\dfrac{1\times2\times3\times4\times5}{2\times3\times4\times5\times6}=\dfrac{1}{6}\)

Answer 3

\(\dfrac{1\times2\times3\times4\times5}{2\times3\times4\times5\times6}=\dfrac{1}{6}\)

Answer 4

\(=\dfrac{1}{3}.\dfrac{3}{4}.\dfrac{4}{5}.\dfrac{5}{6}\\ =\dfrac{1}{4}.\dfrac{4}{5}.\dfrac{5}{6}\\ =\dfrac{1}{5}.\dfrac{5}{6}=\dfrac{1}{6}\)

Answer 5

đáp án đúng là : 1/6