2/2 = 1 because the 2s cancel out and we're left with 1. 67/67 = 1 because the 67s cancels out and we're left with 1. 0/0 undefined, but the 0s cancel out and we're should be left with 1, right?
Saburou Saitoh · just now As Fundamental of Mathematics, the division by zero was known as the generalized Moore-Penrose solution of the fundamental equation: ax=b.
Look the simple evidence of its importance:
viXra:2010.0228 submitted on 2020-10-28 21:39:06,
Division by Zero Calculus and Euclidean Geometry - Revolution in Euclidean Geometry
Look a simple talk for its essence at some international conference: