Question

a) Số?

\(\dfrac{56}{42}=\dfrac{28}{?}=\dfrac{?}{3}\)                           \(\dfrac{16}{24}=\dfrac{2}{?}=\dfrac{?}{12}=\dfrac{40}{?}\)

b) Rút gọn các phân số: \(\dfrac{40}{25};\dfrac{63}{81};\dfrac{36}{60}\)

Answer 1

a) \(\dfrac{56}{42}=\dfrac{28}{21}=\dfrac{4}{3}\)

\(\dfrac{16}{24}=\dfrac{2}{3}=\dfrac{8}{12}=\dfrac{40}{60}\)

b) \(\dfrac{40}{25}=\dfrac{8}{5}\)

\(\dfrac{63}{81}=\dfrac{7}{9}\)

\(\dfrac{36}{60}=\dfrac{3}{5}\)