Odejmij ułamki: 5/6 - 1/6, 3/7 - 5/7, 3/4 - 1/2, 1/6 - 2/3, 3/4 - 1/5, 2/5 - 2/3, 4/7 - 5/8, 4/9 - 1/6, 5/6 - 3/4, 9/10 - 4/15, 3/8 - 5/12, 1/2 - 1/3, 3/8 - 5/12, 1/2 - 4/7, 7/8 - 5/6, 3/5 - 1/10, 4/6 - 2/3, 3/12 - 2/6, 3/6 - 3/10, 14/18 - 4/24, -3/4 - 5/8, -2/3 - 4/7, 1 1/2 - 1/3, 3 1/4 - 3/5, -2/9 - 5/12, -3/5 - 7/8, 4 5/9 - 1 14/30, 4 1/2 - 3 3/5, 3 - 4/5, 5 - 2/3, 7 3/4 - 1/6, 8 2/5 - 6/7, 4 - 5/6, 6 - 1/4, 9 4/5 - 1/2, 4 2/5 - 1 6/8, -5 2/3 - 8, -6 5/7 - 2 4/7, -8 4/5 - 7 9/10, -3 1/3 - 4 1/2, 9 1/3 - 2 4/5, 5 6/7 - 3 1/2, 3 2/9 - 1 4/6, 7 5/8 - 4 3/10.