(.050 minus 2pie over the square root of 6.18 divided by 2pie over the square root of 6.18)times 100

Question

I think the answer is 5 because everything cancels out except .050*100 right?

Answer 1

{[0.05 - (6.28/sqrt6.18)]*(sqrt6.18/6.28}*100
=[0.05 -1]*100 = -95

I don't see how the 0.05 cancels

Answer 2

Find the LCM of 6x square root of 2 +30x and 3x over the square root2 + 18x +15