Question

rút gọn phân số

14/28,25/30,48/30,81/54

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Answer 1

14/28=1/2

25/30=5/6

48/30=8/5

81/54=3/2

Answer 2

14/28=1/2

25/30=5/6

48/30=8/5

81/54=3/2 

Answer 3

\(\frac{14}{28}=\frac{14}{14x2}=\frac{1}{2}\)

\(\frac{25}{30}=\frac{5x5}{5x6}=\frac{5}{6}\)

\(\frac{48}{30}=\frac{2x3x8}{2x3x5}=\frac{8}{5}\)

\(\frac{81}{54}=\frac{9x9}{9x6}=\frac{9}{6}\)

 

Answer 4

\(\frac{1}{2}\);\(\frac{5}{6}\);\(\frac{8}{5}\);\(\frac{3}{2}\)

Answer 5

14/28 = 14 : 14/28 : 14 = 1/2

25/30 = 25 : 5/30 : 5 = 5/6

48/30 = 48 : 6/30 : 6 = 8/5

81/54 = 81 : 27/54 : 27 = 3/2 

Answer 6

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

\(\frac{25}{30}=\frac{5}{6}\)

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

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

Answer 7

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