Пошаговое объяснение:
1.
1) 2. 11/12 : 7/18 = 35/12 : 7/18 = 35/12 * 18/7 = 5/2 * 3/1 = 15/2 = 7. 1/2
2) 14 - 7. 1/2 = 13. 2/2 - 7. 1/2 = 6. 1/2
3) 6. 1/2 : 4. 7/8 = 13/2 : 39/8 = 13/2 * 8/39 = 1/1 * 4/3 = 4/3 = 1. 1/3
2.
1) 4. 7/24 - 1. 7/12 =
4. 7/24 - 1. 14/24 =
3. 31/24 - 1. 14/24 =
2. 17/24 (ц) - продали во 2 день
2) 4. 7/24 + 2. 17/24 = 6. 24/24 = 7 (ц) - продали за два дня
ответ : 7ц
4.
10. 11/24 - х = 6. 7/16
х = 10. 11/24 - 6. 7/16
х = 10. 22/48 - 6. 21/48
х = 4. 1/48
5.
1) 5/8 и 3/4
3/4 = 6/8
5/8 < 6/8, значит :
5/8 < 3/4
2) 4/9 и 3/8
4/9 = 32/72
3/8 = 27/72
32/72 > 27/72, значит :
4/9 > 3/8
