Question

quanto falta ao numero 13/15 para atingir1 1/6

Answer 1

1  1/6 = 7/6

13/15 + x = 7/6
 x = 7/6 - 13/15 ---mmc(6,15) = 30
 x = 35/30 - 26/30 =  9/30 = 3/10 
Faltam 3/10

Verificando:
13/15 + 3/10 = ---mmc(15,10) = 30
 26/30 + 9/30 = 35/30 = 7/6 = 1  1/6