55/12*4/13-2 5/8*3/14 пришлите и решение. заранее !

5 5/12 * 4/13 - 2 5/8 * 3/14 = 1 5/48

1) 5 5/12 * 4/13 = 65/12 * 4/13 = 5/3 = 1 2/3
2) 2 5/8 * 3/14 = 21/8 * 3/14 = 9/16
3) 1 2/3 - 9/16 = 1 32/48 - 27/48 = 1 5/48