Given
3.5m,475cm and 2.8m
Now, convert all the values into cm
1m=100cm
Hence,
3.5×100=350cm
2.8×100=280cm
Hence,
350cm:475cm:280cm
The H.C.F. of 350,475 and 280 is 5
So, the ratio will be
350/5:475/5:280/5
=70:95:56
Therefore, the ratio between 3.5m,475cm and 2.8m is 70:95:56