Question

2/7 + 13/14
 ai giải đầy đủ tui sẽ tick Ià đúng :))

Answer 1

\(\dfrac{2}{7}+\dfrac{13}{14}=\dfrac{4}{14}+\dfrac{13}{14}=\dfrac{4+13}{14}=\dfrac{17}{14}\)

Answer 2

\(\dfrac{2}{7}+\dfrac{13}{14}=\dfrac{2\times2}{7\times2}+\dfrac{13}{14}=\dfrac{4}{14}+\dfrac{13}{14}=\dfrac{4+13}{14}=\dfrac{17}{14}\)

Answer 3

Answer 4

=4/14+13/14

=17/14

Answer 5

=\(\dfrac{17}{14}\)