4√7+(2/√7+1/√5)·√35-(1/√125-1/√175)·25√35-7√5=

Sir is this high school math or something like that because I never seen this in middle school

To find how many times greater a number a is than b, we divide a by b, thus, to calculate how many times greater a number is, we use a division operation.

Comparison of numbers:

To find how many times greater a number a is than b, we compare them, that is, using division.

An example:

Generally, we have that a/b = c means that a is c times greater than a.

A similar problem is given at link