A+B+C = 504
A ---> 3 * 1/20 = 3/20
B ---> 4 * 1/24 = 4/24 = 1/6
C----> 5 * 1/30 = 5/30 = 1/6
3/20 , 1/6 , 1/6 ---mmc (20,6)= 60
9/60 , 10/60 , 10/60
A = 9
B = 10
C = 10
A = B = C = 504
9 ¨¨¨¨¨¨¨¨10¨¨¨¨¨¨¨10 ¨¨¨¨¨¨¨¨29
A = 504 --> 29A = 4536 ---> A = 156 fichas
9 ¨¨¨¨¨¨¨¨¨¨29
B = 504 -->29B = 5040 ---> B = 174 fichas
10¨¨¨¨¨¨¨¨29
----------------------------------------------> C = 174 fichas
VERIFICANDO:
156 + 174 + 174 = 504 fichas