16 x 3/4 = <<16*3/4=12>>12 boys brought gifts.
So, 16 -12 = <<16-12=4>>4 boys did not bring gifts.
14 x 6/7 = <<14*6/7=12>>12 girls brought gifts.
So, 14 - 12 = <<14-12=2>>2 girls did not bring gifts.
Therefore, a total of 4 boys + 2 girls = <<4+2=6>>6 people did not bring gifts.
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