Question

Số?

a) \(\dfrac{3}{5}=\dfrac{3\times4}{5\times4}=\dfrac{?}{?}\)                               \(\dfrac{2}{7}=\dfrac{2\times?}{7\times3}=\dfrac{?}{?}\)

b) \(\dfrac{9}{12}=\dfrac{9:3}{12:3}=\dfrac{?}{?}\)                             \(\dfrac{18}{24}=\dfrac{18:6}{24:?}=\dfrac{?}{?}\)

Answer 1

a) \(\dfrac{12}{20}\)
b)\(\dfrac{6}{21}\)
c)\(\dfrac{3}{4}\)
d) 6 ; \(\dfrac{3}{4}\)

Answer 2