приведите дроби к наименьшему общему знаменатилю:3/5 и 2/3,
3/2 и 7/5,5/4 и 4/3

3/5 = 3×3/5×3 = 9/152/3 = 2×5/3×5 = 10/153/2 = 3×5/2×5 = 15/107/5 = 7×2/5×2 = 14/105/4 = 5×3/4×3 =15/124/3 = 4×4/3×4 = 16/12