Приведите к знаменателю 18 дробь 1) 1/3 2)1/2 3)5/6 4)4/9
1) 1/3 = (6/6 * 1/3) = 6/18, 2) 1/2 = (9/9 * 1/2) = 9/18, 3) 5/6 = (3/3 * 5/6) = 15/18, 4) 4/9 = (2/2 * 4/9) = 8/18
1/3=1×6/3×6=6/18 1/2=1×9/2×9=9/18 5/6=5×3/6×3=15/18 4/9=4×2/9×2=8/18