bro that's only correct if there were only 5 questions, the difference between 60% and 80% is 20%, if someone got say 77% (completely random percentage that isn't relevant) they got fewer than 2/5 wrong and yet somehow, miraculously I guess, they got less than 80% so no, not at least 2/5, the one who failed at both maths and English isn't me it is you, you also failed at basic logic. Understand there was no need to make the fractions for a percentage out of 100 there was no need to turn it into a fraction out of 5 as the MC himself got a mark of 77% and therefore doesn't fit into the random denomination you decided to choose.