Question

3/5:4/7=?

6/5:5/6?

hãy giúp tôi

Answer 1

21/20

36/25

Answer 2

3/5 : 4/7 = 21/20

6/5 : 5/6 = 36/25

Answer 3

21/20

36/25

Answer 4

\(\dfrac{3}{5}\) : \(\dfrac{4}{7}\) = \(\dfrac{3}{5}\) x \(\dfrac{4}{7}\) = \(\dfrac{12}{35}\)

Answer 5

a)\(\dfrac{3}{5}\):\(\dfrac{4}{7}\)=\(\dfrac{3}{5}\).\(\dfrac{7}{4}\)

        =\(\dfrac{3.7}{5.4}\)

        = \(\dfrac{21}{20}\)

b)\(\dfrac{6}{5}\):\(\dfrac{5}{6}\)=\(\dfrac{6}{5}\).\(\dfrac{6}{5}\)

           =\(\dfrac{6.6}{5.5}\)

           = \(\dfrac{36}{25}\)

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