Question

Số?

a) \(\dfrac{2}{5}+.?..=\dfrac{3}{2}\)                      b) \(\dfrac{2}{3}-.?..=\dfrac{1}{2}\)

Answer 1

a) \(\dfrac{2}{5}+\dfrac{11}{10}=\dfrac{3}{2}\)

b) \(\dfrac{2}{3}-\dfrac{1}{6}=\dfrac{1}{2}\)