Приведите к наименьшему общему знаменателю дроби: 1) 13/108 и 24/90; 2) 57/225 и 87/675.

1. НОЗ(108, 90) = 540: \(\frac{13}{108}=\frac{65}{540}\), \(\frac{24}{90}=\frac{144}{540}\).
2. НОЗ(225, 675) = 675: \(\frac{57}{225}=\frac{171}{675}\), \(\frac{87}{675}=\frac{87}{675}\).

Ответ: 1) \(\frac{65}{540}\) и \(\frac{144}{540}\); 2) \(\frac{171}{675}\) и \(\frac{87}{675}\).