Respuesta :

It is 11/10 because if you create a common denominator, it would be 10. 5x2=10 and 2x2=4, so 2/5 would become 4/10. You have to keep the denominator the same and add the numerators, so 7/10+4/10=11/10 or 1 1/10
It's 11/10 because if there is a common denominator, in this situation it would end up to be 10. Hope I helped :D