What is 12900 percent of 0.5 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 0.5 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 0.5 is 100%, so we can write it down as 0.5=100%.
4. We know, that x is 12900% of the output value, so we can write it down as x=12900%.
5. Now we have two simple equations:
1) 0.5=100%
2) x=12900%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
0.5/x=100%/12900%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 12900% of 0.5

0.5/x=100/12900
(0.5/x)*x=(100/12900)*x       - we multiply both sides of the equation by x
0.5=0.0077519379844961*x       - we divide both sides of the equation by (0.0077519379844961) to get x
0.5/0.0077519379844961=x
64.5=x
x=64.5

now we have:
12900% of 0.5=64.5