Question

Решите 3 ( не по порядку))

Answer 1

1) 15 1/3 - 8 5/18 = 15 6/18 - 8 5/18 = 7 1/18
2) 7 1/18 * 2 4/7 = 127/18 * 18/7 = 127/7
3) 127/7 : 6 1/21 = 127/7 * 21/127 = 3
4) 3 - 2 5/8 = 3/8
ответ : 3/8