[tex] \huge\bf \blue{daca \: \ \frac{x}{y} = \frac{a}{b} } \\ \\ \bf\huge\blue{ atunci \: x \times b = a \times y}[/tex]
a)
[tex] \frac{4}{5} = \frac{8}{10 } \\ 4 \times 10 = 8 \times 5 \\ 40 = 40[/tex]
(A)
b)
[tex] \frac{2}{4} = \frac{9}{18} \\ 2 \times 18 = 4 \times 9 \\ 36 = 36[/tex]
(A)
c)
[tex] \frac{2}{3} = \frac{4}{5} \\ 2 \times 5 = 3 \times 4 \\ 10 = 12[/tex]
(F)
d)
4/5=8/10 e de doua ori
am făcut-o deja
(A)
e)
[tex] \frac{3}{6} = \frac{5}{9} \\ 3 \times 9 = 5 \times 6 \\ 27 = 3[/tex]
(F)
