Bonjour
a. 56/64 = (8x 7) / (8 x 8) = 7/8
b. 63/75 = (3x 21) / (3 x 25) = 21/25
c. 28/49 = (7 x 4) / (7 x 7) = 4/7
d. 26/74 = (2 x 13) / (2 x 37) = 13/37
e. (6 x 15) / (6 x 35) = 15/35 = (5 x 3) / (5 x 7) = 3/7
f. (18 x 21) / (45 x 21) = 18/45 = (9 x 2) / (9 x 5) = 2/5
g. (28 x 56) / (16 x 28) = 56/16 = (8 x 7) / (8 x 2) = 7/2
h. (24 x 45) / (18 x 40) = 1080/720 = (630 x 3) / (360 x 2) = 3/2.
