What percent of all matches did they win?

Question

Last year Golden State Warriors won 80% of the first 15 matches. Then they won the rest of the three matches. What percent of all matches did they win?

Answer 1

Eighty Percent when converted to a fraction is 80/100, which simplifies to 4/5. When we multiply 4/5 by 15/1 we get 12. If they then won the rest of the three matches that makes it 12+3, or 15.