time traveled from Orlando to Jacksonville = 2 2/3 hours
time traveled from Jacksonville to Savannah = 4 4/7 hours
So, total time traveled will be 2 2/3 + 4 4/7
convert mixed fractions to improper: 2 2/3= 8/3
4 4/7 =32/7
8/3 + 32/7
lcm = 21
96/21+ 56=+31
= 152/21
mixed fraction = 7 5/21