Răspuns:
Explicație pas cu pas:
a = 5 => 1/a = 1/5
a = 1/7 => 1/a = 7/1 = 7
a = 3 => 1/a = 1/3
a = 2/3 => 1/a = 3/2
a = 7/5 => 1/a = 5/7
a = 11/12 => 1/a = 12/11
a = 3 intregi si 3/4 = (3·4+3)/4 = 15/4 => 1/a = 4/15
a = 5 intregi si 3/4 = (5·4+3)/4 = 23/4 => 1/a = 4/23
a = 8 intregi si 6/7 = (8·7+6)/7 = 62/7 => 1/a = 7/62
#copaceibrainly