Ratios can be written as an optional sign followed by two non-empty sequences of digits separated by a slash; see Figure 2-9. The second sequence may not consist entirely of zeros. Examples of ratios are in the next figure.
2/3 ;This is in canonical form 4/6 ;A non-canonical form for 2/3 -17/23 ;A ratio preceded by a sign -30517578125/32768 ;This is (-5/2)^15 10/5 ;The canonical form for this is 2 #o-101/75 ;Octal notation for -65/61 #3r120/21 ;Ternary notation for 15/7 #Xbc/ad ;Hexadecimal notation for 188/173 #xFADED/FACADE ;Hexadecimal notation for 1027565/16435934
Figure 2-13. Examples of Ratios
For information on how ratios are printed, see Section 18.104.22.168.2 (Printing Ratios).