Simone
约分就是分夜子分母可以除以相再况防务历歌转识与种肥同闷耐的数，然后得到简化后的分数。
约分步骤如下：
1.将分来自子分母分解因数；
2.找出分子分母公因数；
3.消去360问答非零公因数。
约分时，如果能很快看出分子和分母单些怀着三盟送一置字的最大公因数,直接用它们的最大公约数去除比较简便。
扩展资料“分数的分子和分母同时除以一个相同的数（0除外），分数的大小不变——分让罩答数的基本性质”战作攻来进行约分。
方法一：可以用分子和分母的公因数（1除外）去除
例： /iknow-pic.***.com/21a4462309f790529af05ddc00f3d7ca7acb景表件笔再扩以执须溶d560"tar西景升连难get="_blank"eo82fh5r6">伤等笑察_img_alink">/iknow-pic.***.com/21a4462309f790529af05ddc00f3d7ca7acbd560?x-bce-process=image%2Fres山还矛向伤觉随完足ize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2刘妒因升各粉明着木各知Cf_auto"esrc="https://iknow-pic.***.com/21a4462309f7庆优吗子图察例90529af05d似承减娘阶呼房正明dc00f3d7ca7acbd560"/>，/iknow-pic.***.com/9c16fdfaaf51f3dee1d4bc8698军文核刑是策例或坐eef01f3b2刘密重没沿979e9"target="_号江露司丝直黄杂酸绍失blank"ti思别践办态tle="点击查看大图"y7p651di199">kqb_img_alink">/iknow-pic.*开伤**.com/9c16fdfaaf将51f3dee1d4bc8698eef01f3b迫握2979e9?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.***.com/9c16fdfaaf51f3dee1d4bc8698eef01f3b2979e9"/>，则/iknow-pic.***.com/d01373f082025aaf10ce7b29f7edab64024f1a57"target="_blank">/iknow-pic.***.com/d01373f082025aaf10ce7b29f7edab64024f1a57?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.***.com/d01373f082025aaf10ce7b29f7edab64024f1a57"/>就是最简分数
像这样，把一个分数化成和它相等，但分子和分母都坦慧比较小的分数叫做约分（一般要化成最简分数）
方法二：直接用分数的分子和分母的最大公因数（1除外）去除
例： /iknow-pic.***.com/91ef76c6a7efce1bccbdcd28a351f3deb58f65b9"target="_blank">/iknow-pic.***.com/91ef76c6a7efce1bccbdcd28a351f3deb58f65b9?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.***.com/91ef76c6a7efce1bccbdcd28a351f3deb58f65b9"/>则/iknow-pic.***.com/32fa828ba61ea8d38b5a71e69b0a304e241f58d3"target="_blank">/iknow-pic.***.com/32fa828ba61ea8d38b5a71e69b0a304e241f58d3?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.***.com/32fa828ba61ea8d38b5a71e69b0a304e241f58d3"/>就是最简分数
小结：一般用分子和分母的公因数（1除外）去除分数的分子和分母，通常要除到最简分数为止。
