Answer: 4/7
Step-by-step explanation:\
The fraction of free throws that he made in his last basketball game would be 8/14.
The GCF (greatest common factor) of these 2 numbers would be 2.
We divide the numerator and denominator by 2.
(8/2) / (14/2)
4/7
We cannot further simplify this fraction, so this is his success in simplest form.