Б) 4 3/5 - 2 + 1/10 = в) 3 7/8 - 2 3/4 + 1/2 = г) 3 5/14 - 1 - 6/7 =

б) 4 3/5 - 2 + 1/10 = 23/5 - 2 + 1/10 = (23 * 2 / 5 * 2) - (2 * 10 / 1 * 10) + (1 * 1 / 10 * 1) = 

46/10 + 20/10 + 1/10 = 67/10 = 6,7;                       

в) 3 7/8 - 2 3/4 + 1/2 = 31/8 - 11/4 + 1/2 = 31/8 + 22/8 + 4/8 = 57/8 = 7 1/8;

г) 3 5/14 - 1 - 6/7 = 47/14 - 1 - 6/7 = 47/14 - 14/14 - 12/14 = 21/14 = 3/2 = 1 1/2.