Question

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a) \(\dfrac{5}{8}\) kg  \(\dfrac{6}{8}\) kg                       b) \(\dfrac{11}{12}l\)  \(\dfrac{11}{14}l\)                      c) \(\dfrac{5}{6}\) m  \(\dfrac{17}{18}\) m

     \(\dfrac{13}{12}\) kg  1 kg                           \(\dfrac{5}{3}l\)  \(\dfrac{15}{9}l\)                            \(\dfrac{16}{7}\) m  2 m

Answer 1

a)

\(\dfrac{5}{8}\left(kg\right)< \dfrac{6}{8}\left(kg\right)\)

Do 13 > 12 nên \(\dfrac{13}{12}>1\)

hay: \(\dfrac{13}{12}\left(kg\right)>1\left(kg\right)\)

b)

\(\dfrac{11}{12}\left(l\right)>\dfrac{11}{14}\left(l\right)\)

Có:

\(\dfrac{5}{3}=\dfrac{5\times3}{3\times3}=\dfrac{15}{9}\)

nên: \(\dfrac{5}{3}\left(l\right)=\dfrac{15}{9}\left(l\right)\)

c)

\(\dfrac{5}{6}=\dfrac{5\times3}{6\times3}=\dfrac{15}{18n}\)

nên \(\dfrac{5}{6}\left(m\right)< \dfrac{17}{8}\left(m\right)\)

Có: \(2=\dfrac{2\times7}{7}=\dfrac{14}{7}\)

nên: \(\dfrac{16}{7}\left(m\right)>2\left(m\right)\)

Answer 2

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Answer 3