Latihan tambahan

比较两个百分比 = banding dua peratus 两个分数分母不同，先各自化成分母一百：看分母乘几等于一百，分子也乘同一个数。两个新分子一样，百分比就一样。也可以约简其中一个，看它是不是等于另一个。 例子：7/25 → 28/100 = 28%；14/50 → 28/100 = 28%，相同。 注意：分子不能照抄当作百分比，因为分母还不是一百。

compare two percentages = banding dua peratus The denominators are different, so change each fraction to hundredths: find what the denominator times makes 100 and multiply the numerator by the same number. If the new numerators match, the percentages match. You can also simplify one and compare. Example: 7/25 = 28/100 = 28% and 14/50 = 28/100 = 28%, the same. Watch out: do not copy the numerator as the percentage, because the denominator is not yet 100.

一半 = separuh 百分之五十就是一半。判断一个分数是不是一半，只要看分子乘二是否等于分母。逐个检查，找出那个不是一半的分数。 例子：7/14 → 7 × 2 = 14，是一半；6/18 → 6 × 2 = 12，不是一半，它是三分之一。 注意：题目问的是“不”等于 50% 的那一个，找到的是不符合的分数。

half = separuh 50% is one half. To test a fraction, see whether twice the numerator equals the denominator. Check each choice and find the one that is not a half. Example: 7/14: 7 × 2 = 14, so it is a half; 6/18: 6 × 2 = 12, so it is not a half (it is one third). Watch out: the question asks for the one that is NOT 50%.