What is 98.5 percent of 1.28 - 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 1.28 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 1.28 is 100%, so we can write it down as 1.28=100%.
4. We know, that x is 98.5% of the output value, so we can write it down as x=98.5%.
5. Now we have two simple equations:
1) 1.28=100%
2) x=98.5%
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:
1.28/x=100%/98.5%
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 98.5% of 1.28

1.28/x=100/98.5
(1.28/x)*x=(100/98.5)*x       - we multiply both sides of the equation by x
1.28=1.0152284263959*x       - we divide both sides of the equation by (1.0152284263959) to get x
1.28/1.0152284263959=x
1.2608=x
x=1.2608

now we have:
98.5% of 1.28=1.2608