Question

Tính (theo mẫu).

a) 

\(\dfrac{3}{5}+\dfrac{1}{10}=?\)

b) 

\(\dfrac{8}{9}+\dfrac{2}{3}=?\)

c) 

\(\dfrac{1}{2}+\dfrac{5}{8}=?\)

Answer 1

a) \(\dfrac{3}{5}+\dfrac{1}{10}=\dfrac{6}{10}+\dfrac{1}{10}=\dfrac{6+1}{10}=\dfrac{7}{10}\)

b) \(\dfrac{8}{9}+\dfrac{2}{3}=\dfrac{8}{9}+\dfrac{6}{9}=\dfrac{8+6}{9}=\dfrac{14}{9}\)

c) \(\dfrac{1}{2}+\dfrac{5}{8}=\dfrac{4}{8}+\dfrac{5}{8}=\dfrac{4+5}{8}=\dfrac{9}{8}\)

Answer 2

a) \(\dfrac{3}{5}\) + \(\dfrac{1}{10}\) =\(\dfrac{7}{10}\) 

b) \(\dfrac{8}{9}\) +\(\dfrac{2}{3}\)   = \(\dfrac{14}{9}\)

c) \(\dfrac{1}{2}\) + \(\dfrac{5}{8}\)   =\(\dfrac{9}{8}\)