Выполните действия: а) 7 + 4 5/6; б) 4 11/14 + 3 5/14; в) 8 7/10 – 5; г) 12 – 5/17; д) 11 – 4 5/12; е) 8 7/15 – 3 11/15.

а) 7 + 4 5/6 = 42/6 - 29/6 = 13/6 = 2 1/6;

б) 4 11/14 + 3 5/14 = 67/14 + 47/14 = 114/14 = 57/7 = 8 1/7;

в) 8 7/10 – 5 = 87/10 - 50/10 = 37/10 = 3 7/10;

г) 12 – 5/17 = 204/17 - 5/17 = 199/17 = 11 12/17;

д) 11 – 4 5/12 = 132/12 - 53/12 = 79/12 = 6 7/12;

е) 8 7/15 – 3 11/15 = 127/15 - 56/15 = 71/15 = 4 11/15.