Question

Calcule a média aritmética de 1/2, 1/3, 1/4, 1/5

Answer 1

1/2 + 1/3 + 1/4 + 1/5 = (30 + 20 + 15 + 12)/60 = 76/60 ou 19/15. A media seria a somatoria dividida pelo numero de elementos (nesse caso, 4) Entao, Media = 19/15 : 4 --> Media = 19/60

Answer 2

1/2+1/3+1/4+1/5/4∴ 2,3,4,5 Ι 2 1,3,2,5. Ι 2 1,3,1, 5 Ι 3 1,1,1, 5. Ι 5/60 1,1,1, 1. 30+20+15+12/60/4∴ 77/60/4∴ 77/240∴