Răspuns :
Adi = a
Dira = d
a = 3/8
d = a - 1/8
= 3/8 - 1/8
= 2/8
Cat au mancat cei doi = a + d = 3/8 + 2/8
= 5/8
Pizza ramasa = 8/8 - cat au mancat cei doi
= 8/8 - 5/8
= 3/8
Adi = a
Dira = d
a = 3/8
d = a - 1/8
= 3/8 - 1/8
= 2/8
Cat au mancat cei doi = a + d = 3/8 + 2/8
= 5/8
Pizza ramasa = 8/8 - cat au mancat cei doi
= 8/8 - 5/8
= 3/8