Mrs.smith divided one square mile of land to her 3 children,amy,brianna ,and chad.
1 mile is divided among each children . so the fraction of land each one get is

Amy's land =

Brianna's land =

Chad's land =

Amy decided to divide her portion of the land equally between her 2 children.
We know Amys land = 1/3
1/3 is divided among two children so we divide the fraction by 2
=

=

fraction of mrs. smith's land one of amy's children own.
Chad divided his land equally among his 6 children
We know Amys land = 1/3
1/3 is divided among 6 children so we divide the fraction by 6
=

=

fraction of mrs. smith's land one of Chad's children own.