1-7 = 1/7
4-21 = 4/21 = 8/42 = 4/21
3-5 = 3/5
8-15 = 8/15
4-9 = 4/9
5-12 = 5/12 = 25/60 = 5/12
7-18 = 7/18
Итак, сравнивая данные дроби, мы получаем:
1/7 < 4/213/5 > 8/154/9 < 8/155/12 < 7/18
1-7 = 1/7
4-21 = 4/21 = 8/42 = 4/21
3-5 = 3/5
8-15 = 8/15
4-9 = 4/9
8-15 = 8/15
5-12 = 5/12 = 25/60 = 5/12
7-18 = 7/18
Итак, сравнивая данные дроби, мы получаем:
1/7 < 4/21
3/5 > 8/15
4/9 < 8/15
5/12 < 7/18