powienkrz ułamkii 5 razy 1 /2 , 2 /3 , 3/4 , 3/5 , 3/7 , 1/8

1 /2 5 * 1/2 = 5/2= 2 i 1/2 2 /3 2/3 * 5= 10/3= 3 i 1/3 3/4 3/4 * 5= 15/4 = 3 i 3/4 3/5 3/5 * 5 = 3/1 * 1= 3/1= 3 3/7 3/7 * 5= 15/7= 2 i 1/7 1/8  1/8 * 5= 5/8

1/2 * 5 = 2 1/2 2/3 * 5 = 3 1/3 3/4 * 5 = 3 3/4 3/5 * 5 = 3 3/7 * 5 = 2 1/7 1/8 * 5 = 5/8