Uncle Zhang walked 20 kilometers in three hours. How many kilometers per hour on average? Expressed in fractions 2. Jiang Li used six pieces of paper to fold eight thousand paper cranes, and the Palace used eight pieces of paper to fold six thousand paper cranes How many pieces of paper does Jiang Li use per thousand paper cranes? Who folded a thousand paper cranes?

Uncle Zhang walked 20 kilometers in three hours. How many kilometers per hour on average? Expressed in fractions 2. Jiang Li used six pieces of paper to fold eight thousand paper cranes, and the Palace used eight pieces of paper to fold six thousand paper cranes How many pieces of paper does Jiang Li use per thousand paper cranes? Who folded a thousand paper cranes?

1.20÷3=20/3
2. (1) Jiang Li: 6 △ 8 = 3 / 4
Palace: 8 △ 6 = 4 / 3
Because 3 / 4 = 9 / 12