a => turele efectuate de Bogdan
b = > turele efectuate de Corina
9 x a = A
12 x b = A
A = > c.m.m.m.c al numerelor 9 si 12
9 = 3²
12 = 2² x 3
c. m. m. m. c. = 2² x 3² = 4 x 9 = 36
9 x a = 36
a = 36 : 9 = 4 ture face Bogdan
12 x b = 36
b = 36 : 12 = 3 ture face Corina