bonsoir vous pouvez m'aider svp ​

I = 3/4 + 5/16 = 12/16 + 5/16 = 17/16
J = 1/3 - 1/6 = 2/6 - 1/6 = 1/6
K = 9 + 2/7 = 9/1 + 2/7 = 63/7 + 2/7 = 65/7
L = 3 - 1/2 = 3/1 - 1/2 = 6/2 - 1/2 = 5/2