Change into smaller units and add
48m 25cm and 33m 5cm
We know that
1m =100cm
48m =4800cm
48m 25cm =4800+25
48m 25cm =4825cm →1
33m =3300cm
33m 5cm=3300+5
33m 5cm=3305cm→2
Adding equations 1 and 2
4825+3305=8130cm
Hence, 8130cm is the required answer.