№2: Сравните: 1) 9/20 и 13/29; 2) 5.493 и 5.5; 3) -5/21 и -0.25

1) 9/20 = 0.45, 13/29 ≈ 0.448. 9/20 > 13/29. 2) 5.493 < 5.5. 3) -5/21 ≈ -0.238, -0.25 < -5/21.