Question

Verificati daca urmatoarele rapoarte formeaza o proportie:
a)$\frac{5}{6}$ si $\frac{17/3}{51/5}$
b)$\frac{5 intregi1/3}{6}si$$\frac{2,5}{3/2}$  
c)$\frac{1}{3}$ si $\frac{2,5}{7,5}$
Rezolvare completa va rog...
Multumesc :)

Answer 1

a)
5/6
(17/3)/(51/5)=17/3× 5/51=17/3× 5/17×3=5/9
nu formeaza o proportie
b)
(5 1/3)/6 =16/18
2,5/(3/2)=25/10 ×2/3=3/2×2/3=1
nu formeaza o proportie
c)
1/3
2,5/7,5=25/75=1/3
formeaza o proportie  1/3=2,5/7,5