👤

1/3, 1/2, 5/12, 11/24, 23/48
Regula de formare a sirului


Răspuns :

(1/3 + 1/2) × 1/2=(2/6 + 3/6) × 1/2 = 5/6×1/2 = 5/12

(1/2+5/12)×1/2 =(6/12 +5/12)×1/2 =11/12×1/2 =11/24

(5/12+11/24)×1/2=(10/24+11/24)×1/2=21/24×1/2=21/48