what is a fraction like number but without a fraction bar called? and what type of math is it in?

Answer 1

a ratio or a decimal

1/2 = 0.5 = 50% all

equivalent to 1:2 = ratio of 1 to 2

all show up in the mathematics of statistics and probability

all probabiltiies are between 0 and 1, which are all proper fractions, except 1/1 = 100% which is an improper fraction