# Experimental!
# project euler 33
/÷⍉ ⧅>2 +1⇡9    # single digit fractions
⧅>2 +10⇡90      # combinations 10-100
▽⤚(˜∊/÷⍉)       # fractions that simplify
▽⊸≡/(=3⧻◴⊂∩⊥₁₀) # fractions that cancel
Magic ← =⊙÷◡(/÷⊡⊣⊚¬⊙⍉⊙⊟:↻⊙:/↥◡(∩⌟=⊸↻1)∩⊥₁₀)
▽⊸≡/Magic
▽⊸≡/(¬↥∩/↥∩=₀∩⊥₁₀) # non-trivial
⊢÷⊸/∨ /×           # reduce the fraction