Question

5/7+3/14=

13/14-5/6=

6*5/18 =

giải chia tiết nha

 

Answer 1

5/7+3/14= 10/14 + 3/14 = 13/14

13/14-5/6= 39/42 - 35/42 = 4/42= 2/21

6*5/18 = 5/3

Answer 2

10/14 + 3/14 = 13/14

78/84 - 70/84 = 8/84 = 2/21

6 x 5/18 = 30/18 = 15/6

Answer 3

\(\dfrac{5}{7}+\dfrac{3}{14}=\dfrac{10}{14}+\dfrac{3}{14}=\dfrac{13}{14}\)

\(\dfrac{13}{14}-\dfrac{5}{6}=\dfrac{2}{21}\)

\(6\times\dfrac{5}{18}=\dfrac{6\times5}{18}=\dfrac{30}{18}=\dfrac{5}{3}\)