Question

Híp mi

Answer 1

giúp ik làm, van xin cả tuần! 

Answer 2

Câu 1

11/4 - 6/8 = 2

9/5 + 3/4 = 51/20

3/10 x 5/2 = 3/4

2/7 : 5/14 = 4/5

Câu 2

5/6 - x = 2/3

x = 5/6 - 2/3

x = 1/6

4/3 : x = 2

x = 4/3 : 2

x = 2/3

Answer 3

Câu 2: 

a: x=5/6-2/3=5/6-4/6=1/6

b: x=4/3:2=2/3