Frackit

Frackit is an esolang created by islptng. It operates on fractions. It has a stack.

Commands

Command	Meaning
#n	push(n) (n is a positive integer)
/	push(1/pop())
!	pop()
<	insert(0,pop())
>	push(pop(0))
^	push(pop().denominator)
*	push(pop()*pop())
:	duplicate top of stack
%	swap top 2 items
[code]	execute code infinitely
(code1|code2)	pop, if equal to 1, execute code1, else execute code2
+	continue
-	break
,	input a number(can be fraction or integer), push it
.	pop a value and print it(as fraction or integer)
'c	print c as a character

If the program begins with a number, the I/O will be modified to the number-base.
For example, if the program begins with 2, inputting 16 will cause 65536 to be pushed(2^16=65536); outputting 65536 will cause 16 to be printed.

Examples

Hello World

'H'e'l'l'o',' 'w'o'r'l'd'!'

Truth Machine

,(['1]|'0)

Cat

There's no current Cat Programs, since this language only allows you to input an any fraction, so the below one is actually a fraction cat.

[,.]

XKCD Random Number

#4.

Alternative:

'4

A+B problem

2,,*.

It supports any positive integers.

Interpreter

Try it online!