带分数和假分数

认识带分数和假分数；能在两种形式之间互相转换（例如 2/5 + 4/5 = 6/5 = 1 又 1/5）。

Recognise mixed numbers and improper fractions; convert from one form to the other (e.g. 2/5 + 4/5 = 6/5 = 1 1/5)

学习证据 / Evidence

• 将 11/4 转换为 2 又 3/4
• 将 3 又 2/5 转换为 17/5
• 把 6/5 + 4/5 = 10/5 = 2 同时写成假分数和整数

• Convert 11/4 to 2 3/4
• Convert 3 2/5 to 17/5
• Write 6/5 + 4/5 = 10/5 = 2 as both improper fraction and whole number

评估问题 / Assessment

如果{{name}}看到分数 9/4，能将其转换为带分数吗？还能把 2 又 3/5 转回假分数吗？

If {{name}} sees the fraction 9/4, can they convert it to a mixed number — and then turn 2 and 3/5 back into an improper fraction?