The improper fraction of 2/38 is 19/8

The percent of 1 / 20 is 5%

The smallest number r divisible bu 2,3,4,5,6 is 60
we can come to know about this by taking their lcm

You can take the examples of the prime numbers as
2,3 , 5
so you can take the lcm as
___2_|_2,_,3,_5______
___3 | 1, 1. 5
___5 | 1,1,1
so your ans is 2*3*5
=30
or the easy way is just multiply the numbers and you get the lcm of that prime numbers