(7-2 2/5•1 7/8):5 5/8 = 0,8
1) 2 2/5 * 1 7/8 = 12/5 * 15/8 = 3/1 * 3/2 = 9/2
2) 9/2 * 8/45 = 1/1 * 4/5 = 4/5 = 0,8
(7-2 2/5•1 7/8):5 5/8 = 0,8
1) 2 2/5 * 1 7/8 = 12/5 * 15/8 = 3/1 * 3/2 = 9/2
2) 9/2 * 8/45 = 1/1 * 4/5 = 4/5 = 0,8