Bonjour,
a.8/3÷12/3= 8/3 x 3/12 = 24/36 = (12 x 2) / (12 x 3) = 2/3
b.18/3÷9= 18/3 x 1/9 = 18/27 = (9 x 2) / (9 x 3) = 2/3
c.3/4/6= 3 x 6/4 = 18/4 = (2 x 9) / (2 x 4) = 9/4
d.4/12/20/3= 4/12 x 3/20 = 12/240 = (12 x 1) / (12 x 20) = 1/20
e.14/26/28/39 = 14/26 x 39/28 = 546/1 274 = (182 x 3) / (182 x 7) = 3/7.
