Francine has 85 - 5 = <<85-5=80>>80 crayons in total that are in the boxes.
Thus, each box of crayons is filled with 80/5 = <<80/5=16>>16 crayons.
A total of 5 + 27 = <<5+27=32>>32 crayons need to be placed in the boxes.
Therefore, they still need 32/16 = <<32/16=2>>2 boxes for the loose crayons.
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