Помогите срочно!!! Номер 891 ( 1 пример)

Question

Помогите срочно!!! Номер 891 ( 1 пример)

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Answer 1

891.

(5 1/7 * 3/5 : 3 3/5) / (12 1/4 : 1 3/4) = 6/49,

1) 5 1/7 * 3/5 = 36/7 * 3/5 = 108/35 = 3 3/35,
2) 3 3/35 : 3 3/5 = 108/35 : 18/5 = 108/35 * 5/18 = 6/7,

3) 12 1/4 : 1 3/4 = 49/4 : 7/4 = 49/4 * 4/7 = 49/7 = 7,

4) 6/7 : 7 = 6/7 * 1/7 = 6/49