Explicație pas cu pas:
amplificat cu 2 : 1/2, 4/5, 21/5, 100/101, 1111/3 se obtine 2/4, 8/10, 42/10, 200/202, 2222/6
amplificat cu 6 : 1/2, 4/5, 21/5, 100/101, 1111/3 se obtine: 6/12, 24/30, 126/ 30, 600/606, 6666/18
amplificat cu 10 : 1/2, 4/5, 21/5, 100/101, 1111/3 se obtine: 10/20, 40/50, 210/50, 1000/1010, 11110/30