1/4 - 1(11/12) = 1/4 - 11/12 = 3/12 - 11/12 = -8/12 = -2/3
2 - (13/33 - 5/22) = 2 - (132)/(332) - (53)/(223) = 2 - 26/66 + 15/66 = 2 - 11/33 = (66 - 11)/33 = 55/33 = 5/3
6 13/16 - (2 3/8 + 3 5/12) = 6 + 13/16 - 2 - 3/8 - 3 - 5/12 = 6 + 13/16 - 2 - 3/8 - 3 - 5/12 = 6 - 2 - 3 - 13/16 + 3/8 + 5/12 = 1 - 29/16 + 6/8 + 10/12 = 1 - 29/16 + 3/4 + 5/6 = 1 - (293)/(163) + 12/16 + 40/48 = 1 - 87/48 + 12/16 + 40/48 = 48/48 - 87/48 + 36/48 + 40/48 = -3/48 + 76/48 = 73/48 = 1 25/48
1/4 - 1(11/12) = 1/4 - 11/12 = 3/12 - 11/12 = -8/12 = -2/3
2 - (13/33 - 5/22) = 2 - (132)/(332) - (53)/(223) = 2 - 26/66 + 15/66 = 2 - 11/33 = (66 - 11)/33 = 55/33 = 5/3
6 13/16 - (2 3/8 + 3 5/12) = 6 + 13/16 - 2 - 3/8 - 3 - 5/12 = 6 + 13/16 - 2 - 3/8 - 3 - 5/12 = 6 - 2 - 3 - 13/16 + 3/8 + 5/12 = 1 - 29/16 + 6/8 + 10/12 = 1 - 29/16 + 3/4 + 5/6 = 1 - (293)/(163) + 12/16 + 40/48 = 1 - 87/48 + 12/16 + 40/48 = 48/48 - 87/48 + 36/48 + 40/48 = -3/48 + 76/48 = 73/48 = 1 25/48