Răspuns:
a) subunitare < 1 a+b= 15
1+14, 2+13, 3+12, 4+11, 5+10, 6+9, 7+8
[tex]\frac{a}{b} ={ \frac{1}{14} , \frac{2}{13} , \frac{3}{12} , \frac{4}{11} , \frac{5}{19} ,\frac{6}{9} ,\frac{7}{8} }[/tex]
b) supraunitare > 1 a*b= 36
36 *1, 18*2, 12*3, 9*4
[tex]\frac{a}{b} =\frac{36}{1} , \frac{18}{2} , \frac{12}{3} ,\frac{9}{4}[/tex]
