How many pieces do you divide up? Xiaoming eats three pieces, Dad eats four pieces, Mom eats two pieces and gives neighbors three pieces. After eating, how many parts do they eat?

How many pieces do you divide up? Xiaoming eats three pieces, Dad eats four pieces, Mom eats two pieces and gives neighbors three pieces. After eating, how many parts do they eat?

It is divided into 12 pieces, Xiaoming 3 / 12 = 1 / 4, Dad 4 / 12 = 1 / 3, Mom 2 / 12 = 1 / 6, neighbor 3 / 12 = 1 / 4

Cut a watermelon into 8 pieces on average. Xiaoming ate 3 pieces. How many parts of this watermelon did Xiaoming eat?

3÷8=3/8

Today, there are 8 guests at home. My mother bought half a watermelon. My father divided the watermelon into several portions according to the number of people. What percentage of this watermelon did Dongdong eat?
Shouldn't it be half of the watermelon you bought back?

Dongdong ate 1 / 22 of this watermelon