\(\dfrac{3}{5}+\dfrac{4}{9}=\dfrac{27+20}{45}=\dfrac{47}{45}\)
\(\dfrac{3}{5}+\dfrac{4}{9}=\dfrac{27+20}{45}=\dfrac{47}{45}\)
\(\dfrac{3}{5}+\dfrac{4}{9}=\dfrac{47}{45}\)
\(\dfrac{3}{5}+\dfrac{4}{9}=\dfrac{27}{45}+\dfrac{20}{45}=\dfrac{27+20}{45}=\dfrac{47}{45}\)
Giải:
\(\dfrac{3}{5}+\dfrac{4}{9}=\dfrac{27}{45}+\dfrac{20}{45}=\dfrac{27+20}{45}=\dfrac{47}{45}\)
Hok tốt