11)
Yes
11/14 : multiply top and bottom by 2, it will be equal 22/28
11/14 = 22/28
12)
No
3/10 is not equal 4/11
3/10 ≠ 4/11
13)
6/8 : multiply top and bottom by 3, it will be equal 18/24
6/8 = 18/24
