👤

DAU 20 PUNCTE SI COROANA.

.

.
.
[tex] \frac{a}{b } = 7 \: \\ \\ \: \frac{b}{c} = 5 \\ \\ \frac{a}{c} = ? [/tex]


Răspuns :

[tex] \frac{a}{b}=7 \\ \\ \frac{b}{c} =5 \\ \\ \\ \frac{a}{c} = \frac{a}{b}* \frac{b}{c} \\ \\ \frac{a}{c}=7*5 \\ \\ \frac{a}{c}=35[/tex]
[tex] \frac{a}{b} * \frac{b}{c} = 35[/tex]

b si b se reduc ... si ramane ...

⇔ [tex] \frac{a}{c} = 35[/tex]