Răspuns:
a) 28/42 simplificam cu 2 = 14/21 simplificam prin 7 = 2/3
b) 24/36 simplificam prin 12 => 2/3
c) 49/98 simplificam prin 7 => 7/14 simplificam prin 7=> 1/2
d) 192/144 simplificam prin 6 => 32/24 simplificam prin 2 => 16/12 simplificam prin 2=> 8/6 simplificam prin 2 => 4/3