Question

4/3 nhân 5/15 =?

4/5 :16/15 =?

giúp tui

Answer 1

\(\dfrac{4}{3}\cdot\dfrac{5}{15}=\dfrac{4\cdot5}{3\cdot15}=\dfrac{4}{9}\)

\(\dfrac{4}{5}:\dfrac{16}{15}=\dfrac{4}{5}\cdot\dfrac{15}{16}=\dfrac{4\cdot15}{5\cdot16}=\dfrac{3}{4}\)

Answer 2

4/3 x 5/ 15 = \(\dfrac{4x5}{3x15}\) = 20/45

4/5 : 16/15 = 4/5 x 15/16 = \(\dfrac{4x15}{5x16}\) = 60/80 = 3/4

đây nhé 

Answer 3

help me , chanh xanh vs tui ko có tên, nguyễn lê phước thịnh cứu tui