Question

Tính:

a) \(\dfrac{7}{2}\times\dfrac{1}{6}\)                          b) \(\dfrac{8}{11}\times4\)                        c) \(\dfrac{8}{9}:\dfrac{2}{5}\)                          d) \(\dfrac{5}{8}:7\)

Answer 1

a) $\frac{7}{2} \times \frac{1}{6} = \frac{7}{{12}}$

b) $\frac{8}{{11}} \times 4 = \frac{{32}}{{11}}$

c) $\frac{8}{9}:\frac{2}{5} = \frac{8}{9} \times \frac{5}{2} = \frac{{40}}{{18}} = \frac{{20}}{9}$

d) $\frac{5}{8}:7 = \frac{5}{8} \times \frac{1}{7} = \frac{5}{{56}}$