7 tenths is the smallest of those numbers.
The smallest number that is divisible by 20 and 15 is 60.
The smallest number into which both 7 and 15 can be divided evenly is 105.
In this case, the one that has the least digits.
The smallest number is .18
The smallest three digit multiple of 15 is 105, which is 15 x 7.
15 is the smallest number divisible by both 3 and 5
60.45
It is actually 144
15
15
30.
It is: 1