Plz i need !
write the ratio in three different formats: a to b, a : b, a/b
in a year, there are 4 months that have 30 days.
write a ratio of the months with 30 days to the months with other than 30 days.
a.1 to 3, 1: 3, 1/3
b.1 to 2, 1 : 2, 1/2
c.2 to 1, 2: 1, 2/1
d.3 to 1, 3: 1, 3/1