Срочно помогите! Нижний пример

Question

Срочно помогите! Нижний пример

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Answer 1

1 1/4·1 1/3·1 1/5 = 5/4·4/3·6/5 = 5·4·6/4·3·5 = 6/3 = 2
2 - 1 1/10 = 1 10/10 - 1 1/10 = 9/10
7/8 : 3/4 = 7·4/8·3 = 7/6 = 1 1/6
2 - 1 1/6 = 5/6
9/10 ·5/6 = 9·5/10·6 = 3·1/2·2 = 3/4
3/4 + 3 = 3 3/4
3 3/4·3 3/4 = 15/4·15/4 = 225/16 = 14 1/16