34读作
\u628a12\u5206\u4e4b5\u7684\u5206\u5b50\u52a0\u4e0a5\uff0c\u8981\u4f7f\u5206\u6570\u5927\u5c0f\u4e0d\u53d8\uff0c\u5206\u6bcd\u5e94\u5206\u6bcd\u5e94\u52a0\u4e0a12\u3002\u56e0\u4e3a\u5728\u5206\u5b505\u7684\u57fa\u7840\u4e0a\u53c8\u52a0\u4e865\uff0c\u4f7f\u5206\u5b50\u53d8\u4e3a\u4e8610\uff0c\u53d8\u6210\u4e865\u7684\u4e24\u500d\uff0c\u4e3a\u4e86\u4f7f\u5206\u6570\u503c\u4e0d\u53d8\uff0c\u5e94\u8be5\u4e5f\u8ba9\u5206\u6bcd\u53d8\u6210\u539f\u6765\u7684\u4e24\u500d\u300212\u7684\u4e24\u500d\u662f24\uff0c\u6240\u4ee5\u5e94\u8be5\u572812\u7684\u57fa\u7840\u4e0a\u518d\u52a0\u4e0a12
\u5047\u8bbe\u5206\u6bcd\u4e0a\u7684\u6570\u5b57\u662fx \uff0c\u5219\u73b0\u5728\u7684\u5206\u6bcd\u662fx+12,\u8bbe\u5206\u5b50\u662fy,\u5219\u5206\u5b50\u5e94\u8be5\u4e3ax*[(x+12)/x]\uff0c\u7136\u540e\u7528x*[(x+12)/x]\u518d\u51cf\u53bb\u539f\u6765\u7684\u5206\u5b50y\u5c31\u662f\u8981\u52a0\u4e0a\u7684\u6570\u5b57\u4e86\u3002
\u4e3e\u4e2a\u4f8b\u5b50
5/11
\u5206\u6bcd\u662f11\uff0c\u73b0\u5728\u4e3a11+12=23
\u5206\u5b50\u5219\u5e94\u8be5\u662f5*\u3010\uff0811+12\uff09/11\u3011=115/11
115/11-5=60/11
\u6240\u4ee5\u5206\u5b50\u5e94\u8be5\u52a0\u4e0a60/11
\u4e0d\u8fc7\u4e0d\u77e5\u9053\u4f60\u5b66\u4e60\u4e86\u5047\u5206\u6570\u6ca1\u6709\uff1f\u82e5\u5b66\u8fc7\uff0c\u5c31\u5e94\u8be5\u597d\u7406\u89e3\u4e86\uff0c\u82e5\u4e0d\u7406\u89e3\u5c31\u8ba9\u5bb6\u957f\u966a\u4f60\u770b\uff0c\u7136\u540e\u7ed9\u4f60\u8bb2\u89e3\u4e00\u4e0b\u3002
\u8fd9\u91cc\u662f\u5229\u7528\u5206\u6570\u7684\u57fa\u672c\u6027\u8d28\u6765\u89e3\u51b3\u95ee\u9898\u7684\uff1a\u5206\u5b50\u5206\u6bcd\u90fd\u4e58\u4ee5\u6216\u9664\u4ee5\u76f8\u540c\u7684\u6570\uff0c\u5206\u6570\u7684\u503c\u4e0d\u53d8\u3002
\u8fd9\u91cc\u5206\u6bcd\u52a0\u4e0a\u4e8612\uff0c\u4f60\u5c31\u7b97\u4e00\u4e0b\u5206\u6bcd\u6269\u5927\u4e86\u51e0\u500d\uff0c\u4e5f\u5c31\u662f\u7528\u65b0\u5206\u6bcd\u9664\u4ee5\u539f\u5206\u6bcd\u5c31\u5f97\u5230\u500d\u6570\u4e86\uff0c\u7136\u540e\u5206\u5b50\u4e58\u4ee5\u8fd9\u4e2a\u500d\u6570\u518d\u51cf\u53bb\u539f\u5206\u5b50\u5c31\u662f\u8981\u52a0\u7684\u6570\u4e86\u3002
\u4e0d\u77e5\u8fd9\u6837\u80fd\u4e0d\u80fd\u7406\u89e3\uff01\uff01
| 3 |
| 4 |
由于3+12=15，分子扩大了15÷3=5倍，
要使这个分数的大小不变，分母也要扩大5倍，
即4×5=20，即分母要加上20-4=16．
故答案为：四分之三，16．
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