Найдите все натуральные значения x , при которых верно неравенство: 2 целых 3/7 < x\7 < 31\7

1) 3 11/15=3*15+11=56/15
    4 = 3 15/15
   56/15<x/15<3 15/15 
    x=57; 58; 59

2) 3 1/8<25/x<8 1/3
    3 1/8=25/8
    8 1/3=25/3 
    25/8<25/x<25/3
    x=4; 5; 6; 7

2)308

Пошаговое объяснение:

︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎︎

︎

︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎

Пошаговое объяснение:

1) 60 - 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

  48 - 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

  96 - 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96

1, 2, 3, 4, 6, 12,

2) 140 - 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70,  140

   120 - 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60,  120

1, 2, 4, 5, 10

3) 1, 2, 3, 4, 6, 8, 12

4) лишнее 7

5) лишнее 15

6) НОК 10

7) 1, 13  Всего делителей: 2

8) 70

9) Множество

10) 55 и 105

11) 6

12) Все числа имеют делителем само себя и 1

13)Делитель 7 числа 77

14) ответ 120

15) Число 10