To find 20 of 45, you need to calculate 20% of 45. This can be done using the formula:
Percentage = (Part/Whole) * 100
In this case, we want to find 20%, so we can set it up as follows:
20% of 45 = (20/100) * 45
Now, simplify the calculation:
20/100 = 0.2
Next, multiply:
0.2 * 45 = 9
So, 20% of 45 is 9.