Помогите решить:
а) 5 14/19 - 2 6/19 + 9 11/19
б) 6 5/17 - 3 9/17 + 7 10/17
2. Уравнение.
3 5/8 + х - 7 3/8 = 9 5/8
Спасибо за ранее, даю 14 баллов!
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