Вычислите: а) 4 целых 5\8- 2целых 5\9 г)8 целых 6\25 -

а) 4 5/8 - 2 5/9 = 37/8 - 23/9 = (37 * 9)/(8 * 9) - (23 * 8)/(9 * 8) = 333/72 - 184/72 = 149/72 =  2 5/72;

г) 8 6/25 - 3 4/5 = 206/25 - 19/5 = 206/25 - 95/25 = 111/25 = 4 11/25;

ж) 12 2/15 - 2 1/5 = 182/15 - 11/5 = 182/15 - 33/15 = 149/15 = 9 14/15;

б) 16 14/45 - 1 7/15 = 734/45 - 22/15 = 734/45 - 66/45 = 668/45 = 14 38/45;

д) 5 8/15 - 4 23/30 = 83/15 - 143/30 = 166/15 - 143/15 = 23/15 = 1 8/15;

з) 7 4/13 - 6 3/26 = 95/13 - 159/26 = 190/26 - 159/26 = 31/26 = 1 5/26;

в) 9 13/18 - 2 7/9 = 175/18 - 25/9 = 175/18 - 50/18 = 125/18 = 6 17/18;

е) 5 11/15 - 5 2/5 = 11/15 - 2/5 = 11/15 - 6/15 = 5/15 = 1/3;

и) 10 10/13 - 9/10 = 140/13 - 9/10 = 1400/130 - 117/130 = 1283/130 = 9 113/130;