let
x-----> distance school to the park
y-----> distance park to the house
we know that
x=1/3 mile
y=1/2 mile
[distance from school to the house]=x+y----> (1/3+1/2)
The common denominator is (3*2)---> 6
=(2*1+3*1)/(3*2)----> 5/6 mile
the answer is
5/6 miles