\(3x\dfrac{3}{5}+\dfrac{4}{3}=\dfrac{3x3}{5}+\dfrac{4}{3}=\dfrac{9}{5}+\dfrac{4}{3}=\dfrac{27}{15}+\dfrac{20}{15}=\dfrac{47}{15}\)

\(\dfrac{5}{4}+\dfrac{5}{3}:\dfrac{2}{6}=\dfrac{5}{4}+\dfrac{5}{3}x\dfrac{6}{2}=\dfrac{5}{4}+5=\dfrac{5+20}{4}=\dfrac{25}{4}\)

baif veef biểu đồ 

xám ??????????

gỗ 

B ???