5 ways to reduce friction

1-make the surfaces smoother. Rough surfaces provide more friction; smoother surfaces reduce friction.

2-lubrication. Lubricant is a slippery substance that reduces friction by making a surface smoother.

3-reduce contact between surfaces.

4-reduce forces acting on surfaces. Stronger forces means higher friction; reducing the forces reduces the friction.

5-make a more streamlined object. Streamline shape allows water or air to flow around it easily, offering the least resistance.