约分
Simplifying Fractions
利用公因数将分数约分至最简形式；利用公倍数将分数化为公分母。
Use common factors to simplify fractions to their simplest form; use common multiples to express fractions with a common denominator
学习证据 / Evidence
- 通过找出 18 和 24 的最大公因数，将 18/24 约分为 3/4。
- 将 2/3 和 5/8 化为公分母为 24 的分数。
- 解释为什么分子和分母同时除以一个公因数后，得到的分数与原分数相等。
- Simplify 18/24 to 3/4 by identifying the HCF of 18 and 24
- Express 2/3 and 5/8 with a common denominator of 24
- Explain why dividing numerator and denominator by a common factor produces an equivalent fraction
评估问题 / Assessment
如果{{name}}有分数 12/16，他们能否将它约分到最简形式，并说明分子和分母同时除以了多少？
If {{name}} has the fraction 12/16, can they simplify it to its lowest terms — and explain what they divided the top and bottom by?