Equivalent Proportions or Equivalent Fractions Race. Race motorcycles in this math game to play alone against the computer or in a class group. It is a race of equivalent proportions or equivalent fractions to find which fractions have the same value as a given fraction. As you answer with correct fractions, the bike will advance in the race. If you are the fastest with the highest percentage of correct answers, the bike will win the math fraction race. Look at the proportion or fraction shown, and find an equivalent fraction among the 4 possible answers. Get better at calculating equivalent fractions with this math race game from Arcademics: Ratio Stadium, Ratio Equivalency.