Respuesta :

Just multiply the tops together and the bottoms together
2 * 1 = 2 - tops
9 * 3 = 27 - bottoms
The product would be 2/27
2/9 x 1/3 = (2 x 1) / (9 x 3) = 2/27 so leave 1st box empty, second box at top is 2 and third box at bottom is 27