Respuesta :
Count what fraction receive Karen, James and Frank in total:
since
Karen receives - [tex] \frac{1}{8} [/tex],
James receives - [tex] \frac{1}{4}=\frac{2}{8} [/tex],
Frank receives - [tex] \frac{3}{8} [/tex],
then [tex] \frac{1}{8} +\frac{2}{8} +\frac{3}{8} =\frac{1+2+3}{8}=\frac{6}{8} =\frac{2\cdot 3}{2\cdot 4} =\frac{3}{4} [/tex].
All inheritance is the whole 1, then for Dan remains [tex] 1-\frac{3}{4} =\frac{4}{4} -\frac{3}{4} =\frac{4-3}{4} =\frac{1}{4} [/tex].
Answer: Dan receives one quarter of the inheritance.
The answer is  [tex]\frac{1}{4}[/tex]
Explanation
[tex]\frac{1}{8}+\frac{1}{4}+\frac{3}{8}[/tex]
[tex]=\frac{1}{8}+\frac{2}{8}+\frac{3}{8}[/tex]
[tex]=\frac{6}{8}=\frac{3}{4}[/tex]
[tex]1-\frac{3}{4}=\frac{1}{4}[/tex]