Вычислите: 1) 5 + 5/16- 3/24 2) 1 целая 1/2 + 4 целых 1/4 + 3 целых 1/8 3)6 целых 5/9 + 2 целых 7/18 - 7 целых 11/36 4)21 целая 13/15 - 11 целых 7/12+18 целых 11/20
1) 5+5/16-3/24 = 5+ 15/48-6/48 = 5+ 9/48 = 5 9/48 (5 целых 9/48) 2) 1 1/2+4 1/4 +3 1/8 = 3/2 + 17/4 + 25/8 = 12/8+34/8+25/8 = 71/8 = 8 7/8 = (8 целых 7/8) 3) 6 5/9 + 2 7/18 -7 11/36 = 59/9 + 38/18 - 263/36 = 236/36 + 76/36-263/36 = = 49/36 = 1 целая 13/36 4) 21 13/15 - 11 7/12+ 18 11/20 = 328/15-143/12+371/20 = 1312/60-715/60+1113/60 = 1710/60 = 28 30/60 = 28 1/2 = 28 целых 1/2