Question: Sixteen boys and 14 girls attended Simon's birthday party. Three-fourths of the boys and 6/7 of the girls brought gifts. How many of those who attended did not bring gifts? Think carefully first, then make a decision:
16 x 3 / 4 = 12 boys brought gifts. So, 16 - 12 = 4 boys did not bring gifts. 14 x 6 / 7 = 12 girls brought gifts. So, 14 - 12 = 2 girls did not bring gifts. Therefore, a total of 4 boys + 2 girls = 6 people did not bring gifts. So the answer is 6.