Answer:
they both ran the same distance
Step-by-step explanation:
divide 10 by 4 that equals 2.5
2 and 1/2 equals 2.5
-77 PEMDAS is the process you would use and you would have to do the associative property with-(3--4)
So the ratio of boys to girls is 12:24.. now, is that an equivalent ratio as 2 boys for 4 girls? or 2:4? let's see.

you could start simplifying the 12/24 fraction by dividing by some common multiple, say 2, and get 6/12, then divide by 3 and get 2/4 and stop there.
then you'll notice that 12/24 is really 2/4 in disguise.