Răspuns :
[tex] \dfrac{15}{101} + \dfrac{12}{17} + \dfrac{86}{101} + \dfrac{5}{17} = \\ \\ \\ ( \dfrac{15}{101} + \dfrac{86}{101} )+( \dfrac{12}{17} + \dfrac{5}{17} )= \\ \\ \\ \dfrac{101}{101} + \dfrac{17}{17} =1+1=2[/tex]