The comparatives in Italians, as in English, are used to compare people or things.
The comparatives of majority and minority follow the same structure whereas the comparative of equality differs from the other two.
Comparative of majority and minority
Structure: PIÙ + ADJECTIVE + DI/CHE
Example with DI:
Luca è più alto/basso di suo padre
Luca is taller than his father
Example with CHE:
La mela è più/meno rossa che verde
The apple is more/less red than green
Comparative of equality:
Structure: ADJECTIVE + COME/QUANTO
Example with COME:
La mia casa è grande come la tua
My house is as big as yours
Example with QUANTO:
La scuola è importante quanto la famiglia
School is as important as family