1) = (7/2 - 8/3 + 35/6 + 23/5) * 24 =
= (105/30 - 80/30 + 175/30 + 138/30) * 24 =
= 338/30 * 24 = 1352/5 = 270 2/5
2) = (43/6 + 37/2 - 173/24) : 50/3 =
= ( 129/24 + 444/24 - 173/24) : 50/3 =
= 400/24 : 50/3 = 8/8 = 1
3) = (149/12 + 5/3 - 23/6 + 11/4) : (5/2 *2/5 - 7/9) =
= (149/12 + 20/12 - 46/12 + 33/12) : (1 - 7/9) =
= 156/12 : 2/9 = 117/2 = 58 1/2
4) Решение по действиям:
1) 48 3/5 : 6 3/4 = 243/5 : 27/4 = 36/5
2) 36/5 * 5/12 = 3
3) 1 1/2 * 1/3 = 3/2 * 1/3 = 3/6 = 1/2
4) 13 : 26 = 1/2
5) 1/2 - 1/2 = 0
6) 1 75/94 * 0 = 0
7) 3 - 2 5/6 + 0 = 1/6