Answer:
T = 6.41 hours
Step-by-step explanation:
Fishing for Friday = 3 7/12 hours
Fishing for Saturday =2 5/6 hours
We need to find for how long Diana went fishing on Friday and Saturday combined. It means we need to add the time for Friday and Saturday. So,
[tex]T=3\dfrac{7}{12}+2\dfrac{5}{6}\\\\=\dfrac{3(12)+7}{12}+\dfrac{2(6)+5}{6}\\\\=\dfrac{43}{12}+\dfrac{17}{6}\\\\=6.41\ \text{hours}[/tex]
So, the combined timing is 6.41 hours.