No. It&#x27;s not that a gum costs 5 cents because it&#x27;s the only fraction of a dollar that can be represented in cents, it&#x27;s because pricing is inherently done in one-cent increments. If there was a need to price single items at a lower-than-a-cent cost, or at prices between one-cent increments, <i>and</i> if the need for that outweighed the disadvantages, <i>there would be a way to do it</i>.<p>Other example: an apple doesn&#x27;t cost 1&#x2F;3 of a dollar, it costs 33 cents. The need for pricing things as a fraction is simply not there. I doubt most people would see 20 cents as &#x27;1&#x2F;5 of a dollar&#x27; in the first place.<p>This might be a difference between people thinking in metric and thinking in imperial, too. (I&#x27;m metric, fwiw).<p>(before someone says &#x27;I buy resistors that cost less than a cent&#x27;, please show me a place that sells them individually)