Question

Tính.

a) \(\dfrac{4}{7}\times\dfrac{3}{5}\)                           b) \(\dfrac{1}{3}\times\dfrac{9}{10}\)                          c) \(\dfrac{1}{6}\times\dfrac{1}{4}\)

 

Answer 1

a) \(\dfrac{4}{7}\times\dfrac{3}{5}=\dfrac{4\times3}{7\times5}=\dfrac{12}{35}\)

b) \(\dfrac{1}{3}\times\dfrac{9}{10}=\dfrac{1\times9}{3\times10}=\dfrac{9}{30}=\dfrac{3}{10}\)

c) \(\dfrac{1}{6}\times\dfrac{1}{4}=\dfrac{1}{4\times6}=\dfrac{1}{24}\)