下载PDF文件下载PDF文件
X
这篇文章由我们训练有素的编辑和研究团队共同创作,他们对文章的准确性和全面性进行了验证。
How.com.vn的内容管理团队会严密监督编辑人员的工作,确保每篇文章都符合我们的高质量标准要求。
这篇文章已经被读过43,145次。
你曾经为那些恼人的数学问题头痛过么?分数就是其中之一吧?尤其是分数的加法。而其中异分母分数的加法则是难上加难了。然而,其实异分母分数的加法可以很简单。只要你依照下面的步骤进行,就无需担心啦。
步骤
小提示
- 要记得将最后的结果约分哟。
- 要记得将分子、分母同时乘以一个相同的数。
- 把约分留到最后一步再做,这样可以让计算变得简单点。当然,如果有人要求你在过程中约分,请忽略这条贴士。
- 当两个分数相加时,分数的分母必须保持一致,正因为此,它们才叫做公分母。在做通分前就进行加法计算,绝非一条捷径,这只会增加你的计算量。
- 可以借助LCM函数寻找最小公倍数。
广告
这篇文章对你有帮助吗?
⚠️ Disclaimer:
Content from Wiki How 中文 language website. Text is available under the Creative Commons Attribution-Share Alike License; additional terms may apply.
Wiki How does not encourage the violation of any laws, and cannot be responsible for any violations of such laws, should you link to this domain, or use, reproduce, or republish the information contained herein.
- - A few of these subjects are frequently censored by educational, governmental, corporate, parental and other filtering schemes.
- - Some articles may contain names, images, artworks or descriptions of events that some cultures restrict access to
- - Please note: Wiki How does not give you opinion about the law, or advice about medical. If you need specific advice (for example, medical, legal, financial or risk management), please seek a professional who is licensed or knowledgeable in that area.
- - Readers should not judge the importance of topics based on their coverage on Wiki How, nor think a topic is important just because it is the subject of a Wiki article.
广告