Bonjour
a. 25/40 = (5 x 5) / (8 x 5) = 5/8
b. 15/18 = (5 x 3) / (6 x 3) = 5/6
c. 14/6 = (7 x 2) / (3 x 2) = 7/3
d. 110/20 = (11 x 10) / (2 x 10) = 11/2.
