Question

quy đồng a) 3/16 , 5/24 và 21/56. 

Answer 1

\(\dfrac{3}{16};\dfrac{5}{24};\dfrac{21}{56}\)

\(\dfrac{21}{56}=\dfrac{3}{8}=\dfrac{18}{48}\)

\(\dfrac{5}{24}=\dfrac{10}{48}\)

\(\dfrac{3}{16}=\dfrac{9}{48}\)

Ta quy đồng được thành: \(\dfrac{9}{48};\dfrac{10}{48};\dfrac{18}{48}\)

Answer 2

\(\dfrac{3}{16}\text{=}\dfrac{3\times21}{16\times21}\text{=}\dfrac{63}{336}\)

\(\dfrac{5}{24}\text{=}\dfrac{5\times14}{24\times14}\text{=}\dfrac{70}{336}\)

\(\dfrac{21}{56}\text{=}\dfrac{21\times6}{56\times6}\text{=}\dfrac{126}{336}\)