7 - простое число
5 - простое число
9 = 3 * 3
2 - простое число
4 = 2 * 2
Общий знаменатель = 2 * 2 * 3 * 3 * 5 * 7 = 1260
2/7 = 360/1260
3/5 = 756/1260
7/9 = 980/1260
1/2 = 630/1260
1/4 = 315/1260
4/5 = 1008/1260
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Verified answer
7 - простое число
5 - простое число
9 = 3 * 3
2 - простое число
4 = 2 * 2
Общий знаменатель = 2 * 2 * 3 * 3 * 5 * 7 = 1260
2/7 = 360/1260
3/5 = 756/1260
7/9 = 980/1260
1/2 = 630/1260
1/4 = 315/1260
4/5 = 1008/1260