There is no term for such an activity since in most cases it makes no sense.
For example, 20 deg Celsius = 68 deg Fahrenheit. Dividing both by 2 gives 10 deg C and 39 deg F. So what? These two temperatures are unrelated.
Squaring for multiplying, and if you are dividing by the same number, you get 1
There is no special name. Maintaining the proportion would be a description but it is not used as a name.Dividing 4 and 5 by 2 gives 2 and 2.5 : so what?
No, it is not.
The result of multiplying numbers is called the product.
Divisor
There is no particular name for it. For example, the frequency and wavelength of electromagnetic rays are related, but multiplying them by the same number, or dividing, makes no sense.
Squaring for multiplying, and if you are dividing by the same number, you get 1
There is no special name. Maintaining the proportion would be a description but it is not used as a name.Dividing 4 and 5 by 2 gives 2 and 2.5 : so what?
Percent Yield.
It is called algebra. When two quantities are related as long as you do the same operation to both (add, subtract, multiply, or divide) you do not change the relation
An area, in its simplest form is derived by multiplying together two lots of the basic quantities - lengths.
No, it is not.
That would be called the operations.
When the numbers within a fraction are reversed, this is called a reciprocal. A reciprocal is useful when dividing fractions - dividing by a fraction is the same as multiplying by its reciprocal.For example, 4 / 2/3 = 4 x 3/2 = 6.
The result of multiplying numbers is called the product.
The quotient of two quantities called a ratio.
All other quantities which described in terms of base quantities are called base quantities.