<human>:  Anne drops a mirror and breaks it into 60 pieces. She sweeps up half of them, then her cat steals 3 pieces and her boyfriend picks up 1/3 of the remaining pieces. How many pieces does her boyfriend pick up?
<bot>: How many pieces does Anne sweep up? ** First find the number of pieces left after Anne sweeps up: 60 pieces / 2 = <<60/2=30>>30 pieces
How many pieces does Anne's cat take? ** Then subtract the number her cat takes: 30 pieces - 3 pieces = <<30-3=27>>27 pieces
How many pieces does Anne's boyfriend pick up? ** Divide that number by 3 to find how many pieces her boyfriend picks up: 27 pieces / 3 = <<27/3=9>>9 pieces
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