1. 50 · 40 : 100 = 2000 : 100 = 20
2.
a) A / B = {-2,6}
b) A / B = {0,1,2}
3. Cel mai mare numar natural din interval este 2
4. a = [tex] \frac{1}{3} + \frac{12}{5} = \frac{5+36}{15} = \frac{41}{15} [/tex]
b = [tex] \frac{2}{3} + \frac{3}{5} = \frac{10+9}{15} = \frac{19}{15} [/tex]
ma = ([tex] \frac{41}{15} + \frac{19}{15} [/tex]) : 2
ma = [tex] \frac{60}{15} [/tex] : 2
ma = [tex] \frac{30}{15} [/tex]
ma = 2
5. a : 4 = 5
a = 5 · 4
a = 20
