Answer:
It will take Fran and Denise [tex]3\frac{3}{7}[/tex] hours to paint the living room.
Step-by-step explanation:
Given that:
Time taken by Fran to paint living house = 6 hours
Time taken by Denise = 8 hours
Let,
x be the time taken by both of them.
[tex]\frac{1}{Fran's\ share}+\frac{1}{Denise's\ share}=\frac{1}{x}\\\\\frac{1}{6}+\frac{1}{8}=\frac{1}{x}\\\\\frac{4+3}{24}=\frac{1}{x}\\\\\frac{7}{24}=\frac{1}{x}\\\\x = \frac{24}{7}[/tex]
[tex]x = 3\frac{3}{7}[/tex] hours
Hence,
It will take Fran and Denise [tex]3\frac{3}{7}[/tex] hours to paint the living room.