Question

a)Determinati valuorile naturale ale lui n pentru care numarul n/13 este cuprins intre numerele 34/13 si 46/13.
b)Scrieti fractiile obtinute.
c)Aflati suma fractiilor obtinute.
va roggggggg!!!​

Answer 1

Răspuns:

34/13=2,. 46/13=3,

13*3=39

34/13;35/13;36/13;37/13;38/13/...46/13

34+35+36+...45+46=80*(46-34)/2=80*12/2

=80*6=480

suma=480/13

Answer 2

Răspuns:

Explicație pas cu pas:

46/13 > 34/13 (cand fractiile au acelasi numitor, cea mai mare este cea care are cel mai mare numarator)

intre cele doua fractii sunt

35/13; 36/13; 37/13; 38/13; 39/13; 40/13; 41/13; 42/13; 43/13; 44/13; 45/13

a) n = 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45

b) 35/13; 36/13; 37/13; 38/13; 39/13; 40/13; 41/13; 42/13; 43/13; 44/13; 45/13

c)

35/13 + 36/13 + 37/13 + 38/13 + 39/13 + 40/13 + 41/13 + 42/13 + 43/13 + 44/13 + 45/13 = (35 + 36 + 37 + 38 + 39 + 40 + 41 + 42 + 43 + 44 + 45)/13 = 440/13