\(\dfrac{3}{5}\) + \(\dfrac{2}{3}\) = \(\dfrac{19}{15}\)
\(\dfrac{7}{8}\) x \(\dfrac{6}{9}\) = \(\dfrac{7}{12}\)

A

B

10486m

D

3/5 + 4/5 = 9/5
1/2 + 3/5 = 5/10 + 6/10 = 11/10
4/7 - 2/9 = 36/63 - 14/63 = 22/63
2 - 6/11 = 22/11 - 6/11 = 16/11
3/4 x 2/3 = 1/2
5/9 x 3 = 5/3
7/5 : 7/9 = 7/5 x 9/7 = 9/5
6/11 : 3 = 6/11 x 1/3 = 2/11

lỗi

B

A

D