By rename do you mean turn into an improper fraction?
if so, it is because without turning it into an improper fraction, you cannot subtract 3/4 from 1/4 because you would get a negative answer and that would be incorrect
do you mean like decribe or what lol
Three-fourths of the over 500,000 lakes in Europe are found in "c. Norway, Sweden, Finland, and Russia," since these areas have the most access to the Norwegian Sea.