怎样做分数和百分数应用题? 如何才能够会做分数应用题和百分数应用题,求学霸教会。必采纳!

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1.\u5206\u6570\u52a0\u3001\u51cf\u6cd5\u5e94\u7528\u9898

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2.\u5206\u6570\u3001\u767e\u5206\u6570\u4e58\u3001\u9664\u6cd5\u5e94\u7528\u9898

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600\u00f710\u00d79\uff1d540\uff08\u4eba\uff09\u7528\u5206\u6570\u8868\u793a
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400\uff0b400\u00d712\uff05\uff1d400\uff0b48\uff1d448\uff08\u4eba\uff09\uff1b

400\u00d7\uff081\uff0b12\uff05\uff09\uff1d448\uff08\u4eba\uff09\u3002

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x\uff0b12\uff05x\uff1d448\uff0c 1.12x\uff1d448\uff0c x\uff1d400\u3002

3\uff0e\u5de5\u7a0b\u95ee\u9898\u3002

\u8fd9\u662f\u6709\u5173\u5de5\u4f5c\u603b\u91cf\u3001\u5355\u4f4d\u65f6\u95f4\u7684\u5de5\u4f5c\u91cf\uff08\u901a\u5e38\u53eb\u505a\u5de5\u4f5c\u6548\u7387\uff09\u548c\u5de5\u4f5c\u65f6\u95f4\u7684\u95ee\u9898\u3002\u8fd9\u4e09\u8005\u4e4b\u95f4\u7684\u5173\u7cfb\u662f\uff1a
\u5de5\u4f5c\u65f6\u95f4\uff1d\u5de5\u4f5c\u603b\u91cf\u00f7\u5355\u4f4d\u65f6\u95f4\u7684\u5de5\u4f5c\u91cf

\u4f8b\u5982\uff0c\u201c\u4e00\u9879\u5de5\u7a0b\uff0c\u7531\u7532\u961f\u4fee\u5efa\u970020\u5929\u5b8c\u6210\uff0c\u7531\u4e59\u961f\u4fee\u5efa\u970030\u5929\u5b8c\u6210\uff0c\u4e24\u961f\u5408\u4fee\u9700\u8981\u591a\u5c11\u5929\u5b8c\u6210\uff1f\u201d
\u8981\u6c42\u5b66\u751f\u77e5\u9053\u628a\u6574\u4e2a\u5de5\u7a0b\u770b\u4f5c\u201c1\u201d\uff0c\u8fd8\u8981\u77e5\u9053\u7532\u961f\u6bcf\u5929\u53ef\u5b8c\u6210\u8fd9\u9879\u5de5\u7a0b\u7684\uff0c\u4e59\u961f\u6bcf\u5929\u53ef\u5b8c\u6210\u8fd9\u9879\u5de5\u7a0b\u7684\uff0c\u4e24\u961f\u5408\u4fee\u4e00\u5929\u53ef\u4ee5\u5b8c\u6210\u8fd9\u9879\u5de5\u7a0b\u7684\uff08\uff0b\uff09\uff0c\u8fd9\u662f\u4e24\u961f\u5408\u4fee\u7684\u5de5\u4f5c\u6548\u7387\uff0c\u7136\u540e\u7528\u5de5\u4f5c\u603b\u91cf\u9664\u4ee5\u5de5\u4f5c\u6548\u7387\uff0c\u5217\u5f0f\u4e3a\uff1a

1\u00f7\uff08\uff0b\uff09\uff1d12\uff08\u5929\uff09

\u5de5\u7a0b\u95ee\u9898\u7684\u53d8\u5316\u5f88\u591a\uff0c\u53ef\u4ee5\u4e00\u4e2a\u4eba\u72ec\u505a\uff0c\u4e5f\u53ef\u4ee5\u662f\u51e0\u4e2a\u4eba\u5408\u505a\u7684\uff1b\u53ef\u4ee5\u662f\u51e0\u4e2a\u4eba\u540c\u65f6\u5f00\u59cb\u505a\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f\u6709\u5148\u6709\u540e\u505a\u7684\uff1b\u5de5\u4f5c\u7684\u8fdb\u7a0b\u53ef\u4ee5\u662f\u5411\u524d\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f\u5012\u9000\u7684\uff08\u5982\u6c34\u7ba1\u6ce8\u6c34\u4e0e\u653e\u6c34\uff09\u7b49\u7b49\u3002\u4f46\u662f\uff0c\u5fc5\u987b\u6839\u636e\u65b0\u5927\u7eb2\u6700\u591a\u4e0d\u8d85\u8fc7\u4e09\u6b65\u8ba1\u7b97\u7684\u9650\u5236\uff0c\u5728\u8fd9\u4e2a\u9650\u5ea6\u5185\u9002\u5f53\u6709\u4e9b\u53d8\u5316\u3002

\u4e09\u3001\u80fd\u591f\u6709\u6761\u7406\u5730\u8bf4\u660e\u89e3\u9898\u601d\u8def

\u6709\u6761\u7406\u5730\u8bf4\u660e\u89e3\u9898\u601d\u8def\u662f\u8981\u6c42\u57f9\u517b\u5b66\u751f\u6709\u6761\u6709\u7406\u3001\u6709\u6839\u6709\u636e\u5730\u8bf4\u6e05\u695a\u81ea\u5df1\u662f\u600e\u4e48\u601d\u8003\u7684\uff0c\u51b3\u4e0d\u662f\u80cc\u8bf5\u4e00\u4e2a\u6a21\u5f0f\uff0c\u6216\u8005\u662f\u601d\u8def\u8bf4\u4e0d\u6e05\u695a\uff0c\u98a0\u4e09\u5012\u56db\uff0c\u8981\u8ba9\u5b66\u751f\u80fd\u591f\u7528\u81ea\u5df1\u7684\u8bdd\u8868\u8fbe\u6e05\u695a\u3002\u8fd9\u662f\u57f9\u517b\u903b\u8f91\u601d\u7ef4\u80fd\u529b\u7684\u4e00\u4e2a\u91cd\u8981\u65b9\u9762\u3002

\u4f8b\u5982\uff0c\u53d1\u7535\u5382\u6709\u71642500\u5428\uff0c\u7528\u53bb\uff0c\u8fd8\u5269\u591a\u5c11\u5428\uff1f\u5b66\u751f\u72ec\u81ea\u89e3\u7b54\uff0c\u53ef\u80fd\u51fa\u73b0\u4ee5\u4e0b\u4e24\u79cd\u89e3\u6cd5\uff1a

\u24602500\uff0d2500\u00d7 \uff1b \u24612500\u00d7\uff081\uff0d\uff09

\u8fd9\u65f6\uff0c\u8ba9\u5b66\u751f\u8bf4\u660e\u89e3\u9898\u601d\u8def\uff0c\u7b2c\u4e00\u79cd\u89e3\u6cd5\u5fc5\u7136\u8981\u8bf4\u5148\u6c42\u7528\u53bb\u591a\u5c11\u5428\uff0c\u518d\u6c42\u5269\u4e0b\u591a\u5c11\u5428\u3002\u7b2c\u4e8c\u79cd\u89e3\u6cd5\u5fc5\u7136\u8981\u8bf4\u5148\u6c42\u5269\u4e0b\u7684\u5360\u603b\u5428\u6570\u7684\u51e0\u5206\u4e4b\u51e0\uff0c\u518d\u6c42\u8fd9\u4e2a\u51e0\u5206\u4e4b\u51e0\u662f\u591a\u5c11\u5428\u3002\u4e0a\u8ff0\u7b2c\u4e00\u79cd\u89e3\u6cd5\u63a5\u8fd1\u5b66\u751f\u539f\u6709\u7684\u8ba4\u77e5\u7ed3\u6784\uff0c\u56e0\u4e3a\u5728\u6574\u6570\u5e94\u7528\u9898\u5df2\u77e5\u4ece\u603b\u5428\u6570\u4e2d\u51cf\u53bb\u7528\u6389\u7684\uff0c\u5c31\u662f\u5269\u4e0b\u7684\u3002\u7b2c\u4e8c\u79cd\u89e3\u6cd5\u662f\u4ece\u95ee\u9898\u51fa\u53d1\u5206\u6790\u51fa\u6765\u7684\uff0c\u662f\u4e00\u79cd\u65b0\u7684\u601d\u8def\uff0c\u800c\u8fd9\u79cd\u601d\u8def\u5728\u5206\u6570\u5e94\u7528\u9898\u4e2d\u5e38\u5e38\u7528\u5230\uff0c\u6559\u5e08\u4e0d\u4ec5\u8d5e\u8d4f\uff0c\u8fd8\u5e94\u8be5\u8ba9\u66f4\u591a\u7684\u5b66\u751f\u5b66\u4f1a\u8fd9\u79cd\u601d\u8003\u65b9\u6cd5\u3002

\u6b64\u5916\uff0c\u4e0e\u89e3\u9898\u601d\u8def\u6709\u5173\u7684\u662f\u6587\u5b57\u9898\u7684\u6570\u91cf\u5173\u7cfb\uff0c\u73b0\u4e3e\u4f8b\u8bf4\u660e\u5982\u4e0b\uff1a

\u2460\u7532\u6570\u662f\uff0c\u4e59\u6570\u6bd4\u7532\u6570\u5927 \uff0c\u6c42\u4e59\u6570\u3002

\u8fd9\u91cc\u7684\u662f\u7532\u3001\u4e59\u4e24\u6570\u76f8\u5dee\u7684\u6570\u503c\uff0c\u6240\u4ee5\uff0c\u5217\u5f0f\u4e3a\uff1a


\u2461\u7532\u6570\u662f\uff0c\u4e59\u6570\u6bd4\u7532\u6570\u5927\u5b83\u7684\uff0c\u6c42\u4e59\u6570\u3002

\u8fd9\u91cc\u7684\u662f\u6307\u7532\u6570\u7684\u4e00\u534a\uff0c\u6240\u4ee5\uff0c\u5217\u5f0f\u4e3a\uff1a

\u6216\u8005

\u00d7(1+)=

\u2462\u6bd4\u5428\u591a\uff0c\u662f\u591a\u5c11\u5428\uff1f

\u8fd9\u91cc\u7684\u5e26\u6709\u5355\u4f4d\u540d\u79f0\u662f\u5177\u4f53\u7684\u91cf\uff0c\u6ca1\u6709\u5355\u4f4d\u540d\u79f0\uff0c\u5b83\u8868\u793a\u4e24\u4e2a\u6570\u7684\u6bd4\uff0c\u6240\u4ee5\uff0c\u5217\u5f0f\u4e3a\uff1a

\u00d7\uff081+\uff09=\uff08\u5428\uff09

\u2463\u6bd4\u5428\u591a\u5428\u662f\u591a\u5c11\u5428\uff1f

\u5217\u5f0f\u4e3a\uff1a+=\uff08\u5428\uff09

\u2464\u7532\u6570\u662f200\uff0c\u4e59\u6570\u6bd4\u7532\u6570\u592720\uff05\uff0c\u6c42\u4e59\u6570\u3002

\u56e0\u4e3a\u767e\u5206\u6570\u8868\u793a\u4e24\u4e2a\u6570\u7684\u6bd4\uff0c\u6240\u4ee5\uff0c\u5217\u5f0f\u4e3a\uff1a

200\u00d7\uff081\uff0b20\uff05\uff09\uff1d240

\u6839\u636e\u9898\u76ee\u5217\u51fa\u5173\u7cfb\u7684\u4e8b

分数(或百分数)问题:关键是找准标准量,即单位“1”。若单位“1”已知,用乘法计算;若单位“1”未知,用除法计算。
(1)求甲比乙多(或少)几分之几(百分之几)的解题规律:甲乙的差÷乙;
(2)已知甲比乙多(或少)几分之几(百分之几),求甲的解题规律:乙×(1±几分之几);
(3)已知甲比乙多(或少)几分之几(百分之几),求乙的解题规律:甲÷(1±几分之几);
(4)利息=本金×利率×时间;
(5)应纳税额=应纳税所得额×税率
我一个字一个字打的,求采纳

分数的题目基本就是通分,不过有一些题目不一定,有可能会在后面约掉。不过先通分没坏处。
百分数的题目不就是两位的小数么,把小数看得和整数一样啊,反正都是数字。

百分数题先把分数化成小数
分数题先通分:如把2和3都变成6 在约分

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