Question 1188147
pooled proportion is the addition of the two fraction numerators divided by the sum of their denominators, not the average percentage. 64% of 45,or 28.80 or 29/45, since we have to have an integer.
For the second one, it has to be 13/53 as the closest value to 25%, since we can't have 13.25 people
The sum of those two fractions is (29+13)/(45+53)=42/98 or 0.429.

Rough check, the average of the two would be 44.5%, and given the sample sizes are similar but not exact, 43% is reasonable, skewed slightly towards the lower value that had the larger sample size.