1/2=140/280 (amplif cu 140) daca erau perechi 1/2=7/14 si 5/7=10/14
5/7=200/280 (amplif cu 40) si 1/40 si 3/8=15/40
1/40=7/280 (amplif cu 7)
3/8=105/280 (amplificat cu 35)
3/4=27/36 (amplif cu 9)
4/9=16/36 (amplif cu 4)
1/3=2/6 (amplif cu 2)
4/6
2/5=4/10 (cu 2)
3/2=15/10 (cu 5)
7/2=35/10 (cu 5)
7/10
2/18=1/9 (simplif cu 1)
3/27=1/9 (simplif cu 3)
7/18
5/9=10/18 (amplif cu 2)
13/50
39/150=13/50 (simplif cu 3)
3/26
7/13=14/26 (amplif cu 2)