fraction. For example, the child should understand the fraction (a/b) when written within
literary codes. In order to distinguish the literary Braille code from the mathematical
Braille code, the reverse (p) is used to indicate the opening of the fraction. Similarly, the
fraction should also be closed and this is indicated by the inverse image of “reverse p”,
which is indicated by dots 3,4,5 and 6 which stands for the numeral indicator too. See
that the Braille codes have several connotations depending on the context. For example,
the number sign when it comes in front of the number is called the numeral sign whereas
when it comes at the end of the equation, it indicates the closing sign of the fraction.
Therefore, a/b is written as
Please see that this is only a simple fraction. There are complex and hyper-complex
fractions too. A complex fraction is a fraction where at least the numerator or the denomi-
nator is a simple fraction. For indicating a complex fraction opening, the fraction sign is
preceded by dot 6. Similarly, closing of the complex fraction is indicated by the fraction
closing sign preceded by dot 6 after the complex fraction is written. The writing of the
complex fraction is illustrated as follows:
See how is written visually. It is written as
Look at the operations. Operations 2 and 4 are for the first operation which is a simple
fraction. The bar marked as 3 is for the simple fraction and therefore, the expression till
this stage can be written as
3− 2
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