what is the ratio of blue cars to white cars if there are 100 blue and 300 white cars?
There are 400 cars in total, because 100+300=400
In every 400 cars, 100 are blue, so 100/400 is the ratio.
Simplify by dividing both the numerator and denominator by 100.
100/400=1/4
So out of every 4 cars, 1 are blue. The ratio of blue to white is 1:3 I believe.