Commensurable numbers

Related to Commensurable numbers: incommensurable numbers
(Math.) those that can be exactly expressed by some common unit; thus a foot and yard are commensurable, since both can be expressed in terms of an inch, one being 12 inches, the other 36 inches.

See also: Commensurable

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.