3/4 amplificam cu 3 si 2/3 cu 4
= 9/12 - 8/12 = 1/12
7/24 - 1/8
ampl. 1/8 cu 3 = 3/24
7/24-3/24=4/24
5/12 : 1/12 = 5/12 ori 12/1 = 60/12
1/6 : 4/24= 1/6 ori 24/4 = 24/24 = 1
60/12 : 1 = 60/12
60/12 simplificam cu 12 = 5/1
Rezultat: 5/1
