What if fractions did not exist?

Answer 1

Then pi would go the way of the cake and become a lie.

In all seriousness, though, here would be no curvature, no matrices, many economic infrastructures would be toast. Take, for instance, the US' currency standard of a dollar ($1). If nothing could cost 1/100th of a dollar to produce--a penny, the cost of production of that item would be forced into a full dollar. While the costs of goods and services would not necessarily balloon 100x in every instance, they would still balloon in such an exponential fashion the sheer amount of additional currency that would have to be in circulation would be astronomical, further destroying the perceived value of the dollar (remember, to produce one full something, it would have to cost one full something--no fractions!). Not to mention make it very difficult to carry such large amounts of cash. Mind you, this is but one of several examples of what could happen without the existence of fractions. They are an extremely necessary evil.