Question

a) 2/5 + 3 =...

b) 4+ 2/3 =...

Answer 1

\(a,\dfrac{2}{5}+3=\dfrac{2}{5}+\dfrac{15}{5}=\dfrac{17}{5}\\ b,4+\dfrac{2}{3}=\dfrac{12}{3}+\dfrac{2}{3}=\dfrac{14}{3}\)

Answer 2

a.\(\dfrac{2}{5}+3=\dfrac{2}{5}+\dfrac{15}{5}=\dfrac{17}{5}\)

b.\(4+\dfrac{2}{3}=\dfrac{12}{3}+\dfrac{2}{3}=\dfrac{14}{3}\)

Answer 3

\(a.\dfrac{2}{5}+3=\dfrac{2+15}{5}=\dfrac{17}{5}\\ b.4+\dfrac{2}{3}=\dfrac{12+2}{3}=\dfrac{14}{3}\)

Answer 4

17/5      14/3    nha bạn