Respuesta :

pegah
you can say 1 and 7/11 is 18/11 and 2 and 1/2 is 5/2 so : 
18/11 ÷ 5/2  so 18/11 * 2/5 = 36/55 = 0.654 :)))
i hope this is helpful 
have a nice day 
Billymkhoi
1 7/11/ (2 1/2)
= (18/11) / (5/2)
= (18/11)* (2/5)
= 36/55

The final answer is 36/55~