Question

d

Answer 1

Câu 1: 

a: =7/12+6/36=21/36+6/36=27/36=3/4

b: =8/9-20/30=8/9-2/3=8/9-6/9=2/9

Answer 2

3ng trl nhanh nhất có like

Answer 3

mn trl giúp mình với đang vội

Answer 4

1 .

a : = \(\dfrac{7}{12}\) + \(\dfrac{6}{36}\) = \(\dfrac{21}{36}\)  + \(\dfrac{6}{36}\) = \(\dfrac{27}{36}\) = \(\dfrac{3}{4}\)

b : = \(\dfrac{8}{9}\) - \(\dfrac{20}{30}\) = \(\dfrac{8}{9}\) - \(\dfrac{2}{3}\) = \(\dfrac{8}{9}\) - \(\dfrac{6}{9}\) = \(\dfrac{2}{9}\)

Vui lòng đừng copy !

END!

Answer 5

Đề thi hả bn 

?

Answer 6

8 A

9 A