Question

Exercițiul acesta ! Va rog , repede! 15 pcte

Answer 1

a) 5^18:5^10•5^4-5^12= 5^8•5^4-5^12=5^12-5^12=0
b) aduci la acelasi numitor in paranteza si ajungi la 2/33•33/24:1/12= 2/24:1/12=1/12:1/12=1

Answer 2

b)
$\frac{2}{33} \times ( \frac{5}{6} + \frac{7}{12} - \frac{1}{24}) \div \frac{1}{12} + ( \frac{2}{3}) \\ \frac{2}{33} \times \frac{1}{18} \times 12 + \frac{4}{9} \\ = > \frac{1}{3} \times \frac{1}{4} + \frac{4}{9} = 1 \frac{4}{9} \\ = > 1 \frac{13}{9}$