How many wholes are in 20/6

3 wholes

Step-by-step explanation:

you can draw 6 circles and fill each circle with a number inside until you reach 20, I did that and had 3 wholes in each circle and two numbers left aside because two circles would be more than the rest. You can also do 20/6 or 20 ÷ 6 and you will get 3.333... But the point is that there will be 3 wholes in 20/6

lol sorry for the long explanation, hope you have a good day/night :))

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.