Respuesta :
1/7 of 21 eggs only = 3 people
2/3 of 21 pancakes and eggs = 14 people
leaves 4 people (21-17) or 4/21 is the fraction that ate pancakes only
2/3 of 21 pancakes and eggs = 14 people
leaves 4 people (21-17) or 4/21 is the fraction that ate pancakes only