A portable battery charger can fully charge a smartphone in 26 minutes or a tablet in 53 minutes. Ana charged her tablet fully and her phone halfway. How many minutes did it take? Let's be accurate as possible.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Ana charged her phone halfway, so she took 26 / 2 = 13 minutes to charge her phone. Thus, it took Ana 13 + 53 = 66 minutes to charge her phone and tablet.
The answer: 66.