Odpowiedź :
1/9 : 4/5 = 1/9 * 5/4 = 5/36
4/7 : 5/9 = 4/7 * 9/7 = 36/49
2/7 : 4/9 = 2/7 * 9/4 = 1/7 * 9/2 = 9/9 = 1
2/5 : 6/15 = 2/5 * 15/6 = 1/1 * 3/3 = 3/3 = 1
licze na korone i dziekuje<33
1/9 : 4/5 = 1/9 * 5/4 = 5/36
4/7 : 5/9 = 4/7 * 9/7 = 36/49
2/7 : 4/9 = 2/7 * 9/4 = 1/7 * 9/2 = 9/9 = 1
2/5 : 6/15 = 2/5 * 15/6 = 1/1 * 3/3 = 3/3 = 1
licze na korone i dziekuje<33