Ответы
Пошаговое объяснение:
№1
1) 11 4/7 : 3 = 81/7 * 1/3 = 27/7 * 1/1 = 27/7
2) 27/7 * 1/63 = 3/7 * 1/7 = 3/49
3) 65 1/63 - 30 1/14 = 65 2/126 - 30 9/126 = 64 128/126 - 30 9/126 = 34 119/126
4) 34 119/126 - 19 17/18 = 34 119/126 - 19 119/126 = 15
5) 15 + 3/49 = 15 3/49
6) 15 3/49 + 3 55/98 = 15 6/98 + 3 55/98 = 18 61/98
№2
1) 1/10 + 1 9/35 = 7/70 + 1 18/70 = 1 25/70 = 1 5/14
2) 1 5/14 + 2 9/14 = 3 14/14 = 4
3) 14 2/3 : 4 = 44/3 * 1/4 = 11/3 * 1/1 = 11/3
4) 29 - 24 5/9 = 28 9/9 - 24 5/9 = 4 4/9
5) 4 4/9 + 91/99 = 4 44/99 + 91/99 = 4 135/99 = 5 36/99 = 5 4/11
6) 11/3 * 5 4/11 = 11/3 * 59/11 = 1/3 * 59/1 = 59/3 = 19 2/3
№3
1) 11 2/9 * 1/2 =101/9 * 1/2 = 101/18 = 5 11/18
2) 6 3/4 : 9 = 27/4 * 1/9 = 3/4 * 1/1 = 3/4
3) 6 16/21 : 6/7 = 142/21 * 7/6 = 71/3 * 1/3 = 71/9 = 7 8/9
4) 80 7/8 - 72 7/8 = 8
5) 8 + 5 11/18 = 13 11/18
6) 13 11/18 - 3/4 = 13 22/36 - 27/36 = 12 58/36 - 27/36 = 12 31/36
7) 12 31/36 + 7 8/9 = 12 31/36 + 7 32/36 = 19 63/36 = 20 27/36 = 20 3/4
Ответ:
смотри на фотографии
Пошаговое объяснение:
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![](https://st.uroker.com/files/fd2/fd2a982b3dcb6cb9f75df6dfd344e3a3.jpg)
![](https://st.uroker.com/files/75c/75c7c284abb5b66a71861e5ce46a0171.jpg)