0.51 is what percent of 1.3 - 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 1.3 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 100% equals 1.3, so we can write it down as 100%=1.3.
4. We know, that x% equals 0.51 of the output value, so we can write it down as x%=0.51.
5. Now we have two simple equations:
1) 100%=1.3
2) x%=0.51
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:
100%/x%=1.3/0.51
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 0.51 is what percent of 1.3

100%/x%=1.3/0.51
(100/x)*x=(1.3/0.51)*x       - we multiply both sides of the equation by x
100=2.5490196078431*x       - we divide both sides of the equation by (2.5490196078431) to get x
100/2.5490196078431=x
39.230769230769=x
x=39.230769230769

now we have:
0.51 is 39.230769230769% of 1.3