How to convert 4.075 in to a improper fraction

163/40

Step-by-step explanation:

Imroper fraction: Numerator > denomenator.

It is 4 + 0.075. so you need to find what 0.075 is as a fraction.

To go decimal -> fraction, multiply by 10/10, 100/100, 1000/1000 etc. until it is a whole number on top.

0.075 *(1000/1000) = 75 / 1000

Then simplify. (Divide top and bottom by 25)

3 / 40

Now convert 4 to over 40, by doing 4 * 40 / 40 = 160 / 40.

Then add 3 / 40 + 160 / 40 = 163/40

what do you mean by fog

step-by-step explanation:

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.