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## 2.3.2.1.2 Syntax of a Ratio

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 22.1.3.1.2 (Printing Ratios).

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