Respostas

2014-06-26T14:28:37-03:00
3/5 a soma =8
32 ÷ 8 = 4
3 x 4 = 12
5 x 4 =20
a fracao equivalente = 12/20
1 5 1
2014-06-26T14:42:30-03:00
Aplique a fórmula de PG

sn=a1(q^n-1) / q -1