Răspuns :
3/5 + 1/6 - 7/10 = 18/30 + 5/30 - 21/30 = (18+5-21)/30 = 2/30 = 1/15
3/5+1/6-7/10=18/30+5/30-21/30=23/30-21/30=
2/30 => simplificăm cu 2 => 1/15
5=5¹
6=2¹×3
10=2¹×5
[5,6,10]=2¹×5×3=30=>n.c.=30
3/5=> amplificat cu 6
1/6 => amplificat cu 5
7/10 => amplificat cu 3
2/30 => simplificăm cu 2 => 1/15
5=5¹
6=2¹×3
10=2¹×5
[5,6,10]=2¹×5×3=30=>n.c.=30
3/5=> amplificat cu 6
1/6 => amplificat cu 5
7/10 => amplificat cu 3