Вычеслите разности:1- 1/2, 2-1/3, 3-1/4, 4-1/5
1- 1/2=2/2-1/2=1/2;//// 2-1/3=1 3/3-1/3=1 2/3;//// 3-1/4=2 4/4-1/4=2 3/4;//// 4-1/5=3 5/5-1/5=3 4/5