Grandma died and her surviving descendents were $2$ children, $3$ grandchildren, and

$1$ great$-$grandchild. Her will specified that her estate is to be divided, $"$To my

descendents, per capita." a$).$ Which people get a piece of her estate?

b$).$ For each person you listed in part a$,$ please tell me what fraction or percentage of her estate they get. $($for example $($this is not a correct answer$),$ her child gets $(2)/(3)$ or $67\%$ of the estate$)$