Answer :
1 mile=5280 feet
fraction is parts out whole
part=3960
whole=1 mile=5280
fraction is 3960/5280=3/4 mile
he walked 3/4 mile
how much more needed
5280-3960=1320
1320 more feet needed
fraction is parts out whole
part=3960
whole=1 mile=5280
fraction is 3960/5280=3/4 mile
he walked 3/4 mile
how much more needed
5280-3960=1320
1320 more feet needed