Question 1164210: My home is 54 km away from my grandparent’s house. If I travel 48 km by train and the rest by car, then what fraction do I travel by car. Answer by ikleyn(52829) (Show Source):
This fraction is = = of the whole distance. ANSWER
In such problems, the key point is to determine to which base (or to which amount) to relate the part.
If the problem is silent about it, then BY DEFAULT you relate the part to the whole amount.