Question

alguém pode me ajudar

Answer 1

$\frac{1}{6} . \frac{9}{7} . \frac{3}{6} : \frac{2}{5} =\\\\ \frac{27}{252} . \frac{5}{2} = \frac{135}{504}$

Answer 2

135/504, porque:

a/b * c/d = a*c/d*b
e
a/b : c/d = a*d/b*c