Question

Ajutaţima va rog la ex.13​

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

13) a)

$\frac{8}{9}+\frac{14}{27}+\frac{1}{9}=\frac{24+14+3}{27}=\frac{41}{27}  \\\\\frac{3}{17}+\frac{8}{102}+\frac{14}{17}=\frac{18+8+84}{102}=\frac{110}{102}=\frac{55}{51}$

1/33 + 3/11 + 2/11 = (1+9+6)/33 = 16/33

2/5 + 1/20 + 4/5 = (8+1+16)/20 = 25/20 = 5/4