Question

rút gọn phấn số
\(\dfrac{14}{28}\)                                                             \(\dfrac{25}{50}\)                       \(\dfrac{81}{54}\)            

 
\(\dfrac{48}{30}\)

Answer 1

14/28=1/2

25/50=1/2

81/54=3/2

48/30=8/5

Answer 2

\(\dfrac{14}{28}=\dfrac{1}{2}\)

\(\dfrac{25}{50}=\dfrac{1}{2}\)

\(\dfrac{81}{54}=\dfrac{3}{2}\)

\(\dfrac{48}{30}=\dfrac{8}{5}\)

Answer 3

`14/28=(14:14)/(28:14)=1/2`

`25/50=(25:25)/(50:25)=1/2`

`81/54 = (81:27)/(54:27)=3/2`

`48/30 = (48:6)/(30:6)=8/5`

Answer 4

\(\dfrac{14}{28}\) = \(\dfrac{1}{2}\)

\(\dfrac{48}{30}\) = \(\dfrac{8}{5}\)

\(\dfrac{25}{50}\) = \(\dfrac{1}{2}\)

\(\dfrac{81}{54}\) = \(\dfrac{3}{2}\)

Answer 5

\(\dfrac{14}{28}=\dfrac{14:14}{28:14}=\dfrac{1}{2}\)

\(\dfrac{25}{50}=\dfrac{25:5}{50:5}=\dfrac{5}{10}=\dfrac{1}{2}\)

còn lại bạn làm tương tự nha

Answer 6

14/28=1/2
48/30=8/5
25/50=1/2
81/54=3/2