Помогите пж номер 299 300

Question

Помогите пж номер 299 300

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Answer 1

1/2 = 30/60 
2/3 = 40/60
3/4 = 45/60
4/5 = 48/60
5/6 = 50/60
9/10 = 54/60
11/12 = 55/60
14/15 = 56/60
29/30 = 58/60

3/18 = 1/6
8/14 = 4/7
15/35 = 3/7
49/63 = 7/9
27/45 = 3/5
18/72 = 1/4
32/56 = 4/7