Ratio means the quantitative relation between two amounts showing the number of times one value contains or contained in order
example 4 and 6
for example
if we have 4 men and 6 women
we can say the ratio of men to women is 4 to 6
that is 4 : 6
and ratio can also means division
for 4 and 6
= 4 / 6
= 2 / 3
= 2 : 3
that is, for every 2 men we have 3 women