1/6 + 7/18 = 5/9
1/3 - 1/9 = 2/9
10/211 - 1/3 = -181/633
14/15 - 3/5 = 1/3
Задача.
1/7 + 2/7 = 3/7
1 - 3/7 = 4/7
ответ: 4/7
1/6 + 7/18 = 5/9
1/3 - 1/9 = 2/9
10/211 - 1/3 = -181/633
14/15 - 3/5 = 1/3
Задача.
1/7 + 2/7 = 3/7
1 - 3/7 = 4/7
ответ: 4/7