Question

Adevarat say fals la B si D

Answer 1

b)
$7 > \frac{50}{6}$
Se simplifica fractia cu 2

$7 > \frac{25}{3}$
Acum se inmulteste incrucisat:
$\frac{a}{b} = \frac{x}{y}$
=> y × a = b × x

In cazul acesta:
$\frac{7}{1} > \frac{25}{3}$
Chiar daca nu are semnul egal, inca poti sa inmultesti asa
=>
7 × 3 > 25×1
21 > 25 => FALS

d)
$\frac{111}{6} > 17 \\ \frac{37}{2} > 17 \\ \frac{37}{2} > \frac{7}{1} \\ = > 37 \times 1 > 7 \times 2 \\ = > 37 > 14$
Ceea ce este adevarat