Question

Tính:

a) \(\dfrac{3}{10}:\dfrac{2}{5}\);                            b) \(\dfrac{4}{7}:\dfrac{3}{11}\).

Answer 1

Answer 2

\(\dfrac{3}{10}:\dfrac{2}{5}=\dfrac{3}{10}.\dfrac{5}{2}=\dfrac{15}{20}=\dfrac{3}{4}\)

\(\dfrac{4}{7}:\dfrac{3}{11}=\dfrac{4}{7}\dfrac{.11}{3}=\dfrac{44}{21}\)

Answer 3

a) \(\dfrac{3}{10}:\dfrac{2}{5}=\dfrac{3}{10}\cdot\dfrac{5}{2}=\dfrac{15}{20}=\dfrac{3}{4}\)

Answer 4

b) \(\dfrac{4}{7}:\dfrac{3}{11}=\dfrac{4}{7}\cdot\dfrac{11}{3}=\dfrac{44}{21}\)