Question

4/9: 5/7= 5/7: 4/9= Hãy giúp tôi 1/3:1/4= 1/4:1/3= Giải giúp tôi

Answer 1

\(\frac{4}{9}:\frac{5}{7}=\frac{4}{9}\times\frac{7}{5}=\frac{4\times7}{9\times5}=\frac{28}{45}\)

\(\frac{5}{7}:\frac{4}{9}=\frac{5}{7}\times\frac{9}{4}=\frac{5\times9}{7\times4}=\frac{45}{28}\)

\(\frac{1}{3}:\frac{1}{4}=\frac{1}{3}\times4=\frac{4}{3}\)

\(\frac{1}{4}:\frac{1}{3}=\frac{1}{4}\times3=\frac{3}{4}\)