Answer:
See below :D
Explanation:
Well, 20% is simply 20/100. By reducing it would go down to 2/10... try to reduce 2/10 in its lowest terms! You can do it, I believe in you :D
Another way is converting it to a decimal:
0.20
Which is another way of saying 0.2
0.2 = 2/10
2/10 is not reduced in its lowest terms, but I'm sure you can figure out the rest. Good luck and ask if you need more details in the works or if you can't figure it out! I'll be here.