同分母带分数的加减法
Adding and subtracting mixed numbers
会计算同分母带分数的加减法，包括将带分数化为假分数来计算，或运用运算性质进行计算。
Add and subtract mixed numbers with like denominators, including by converting to improper fractions or using properties of operations
学习证据 / Evidence
- 计算2又3/5 + 1又4/5，并用带分数表示结果。
- 从5又3/4中减去3又1/4。
- 通过将整数部分拆分来计算4又2/6 − 1又5/6。
- Calculate 2 3/5 + 1 4/5 and express as a mixed number
- Subtract 3 1/4 from 5 3/4
- Solve 4 2/6 − 1 5/6 by regrouping the whole number
评估问题 / Assessment
如果食谱需要1又2/5杯燕麦，另一批需要2又3/5杯，{{name}}能把它们加在一起算出总数吗——包括当五分之一部分相加达到或超过一个整数时进行转换？
If a recipe calls for 1 and 2/5 cups of oats and another batch needs 2 and 3/5 cups, can {{name}} add them together to get the total — including converting when the fifths add up past a whole?