Question

Rút gọn các phân số : 14/28 ; 25/50 ; 48/30 ; 81/54

Answer 1

\(\Leftrightarrow\dfrac{1}{2};\dfrac{1}{2};\dfrac{8}{5};\dfrac{3}{2}\)

Answer 2

14/28=1/2

25/50=1/2

48/30=8/5

81/54=3/2

Answer 3

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

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

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

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

Answer 4

14/28= 1/2

25/50 = 1/2

48/30= 8/5

81/54= 3/2

 

Answer 5

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

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

\(\dfrac{48}{30}=\dfrac{48:6}{30:6}=\dfrac{8}{5}\)

\(\dfrac{81}{54}=\dfrac{81:27}{54:27}=\dfrac{3}{2}\)

Answer 6

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

Answer 7

\(\dfrac{14}{28}=\dfrac{14:14}{28:14}=\dfrac{1}{2};\dfrac{25}{50}=\dfrac{25:25}{50:25}=\dfrac{1}{2}\\ \dfrac{48}{30}=\dfrac{48:6}{30:6}=\dfrac{8}{5};\dfrac{81}{54}=\dfrac{81:27}{54:27}=\dfrac{3}{2}\)

Answer 8

14/28=1/2

25/50=1/2

48/30=8/5

81/54=3/2

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