The equation of a circle:

(h,k) - the coordinates of the center
r - the radius
The center is (4,0), the length of the radius is 2√3.
soo are these real math questions? I mean like do your teachers actually ask you these kind of questions or you are making all this up? because they seem to have no answers for them at all
I hope this is a joke tbh
Hence, -45 is the number which when added to the given fraction will give 2/3
Further explanation:
Given fraction is:

Let x be the number which has to be added to numerator and denominator
Then

Cross-multiplying

Hence, -45 is the number which when added to the given fraction will give 2/3
Keywords: Linear equation in one variable, Cross-multiplication
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