Приведите дробь к знаменателю 10,ИЛИ 100, или 1000.
а)1/2 б) 1/4 в)1/8 г) 1/5 д) 1/25 е) 1/125 ж) 3/4 з) 4/5
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а)![\frac{1}{2}=\frac{1\cdot5}{2\cdot5}=\frac{5}{10} \frac{1}{2}=\frac{1\cdot5}{2\cdot5}=\frac{5}{10}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%3D%5Cfrac%7B1%5Ccdot5%7D%7B2%5Ccdot5%7D%3D%5Cfrac%7B5%7D%7B10%7D)
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б)![\frac{1}{4}=\frac{1\cdot25}{4\cdot25}=\frac{25}{100} \frac{1}{4}=\frac{1\cdot25}{4\cdot25}=\frac{25}{100}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D%3D%5Cfrac%7B1%5Ccdot25%7D%7B4%5Ccdot25%7D%3D%5Cfrac%7B25%7D%7B100%7D)
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в)![\frac{1}{8}=\frac{1\cdot125}{8\cdot125}=\frac{125}{1000} \frac{1}{8}=\frac{1\cdot125}{8\cdot125}=\frac{125}{1000}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B8%7D%3D%5Cfrac%7B1%5Ccdot125%7D%7B8%5Ccdot125%7D%3D%5Cfrac%7B125%7D%7B1000%7D)
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г)![\frac{1}{5}=\frac{1\cdot2}{5\cdot2}=\frac{2}{10} \frac{1}{5}=\frac{1\cdot2}{5\cdot2}=\frac{2}{10}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B5%7D%3D%5Cfrac%7B1%5Ccdot2%7D%7B5%5Ccdot2%7D%3D%5Cfrac%7B2%7D%7B10%7D)
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д)![\frac{1}{25}=\frac{1\cdot4}{25\cdot4}=\frac{4}{100} \frac{1}{25}=\frac{1\cdot4}{25\cdot4}=\frac{4}{100}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B25%7D%3D%5Cfrac%7B1%5Ccdot4%7D%7B25%5Ccdot4%7D%3D%5Cfrac%7B4%7D%7B100%7D)
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е)![\frac{1}{125}=\frac{1\cdot8}{125\cdot8}=\frac{8}{1000} \frac{1}{125}=\frac{1\cdot8}{125\cdot8}=\frac{8}{1000}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B125%7D%3D%5Cfrac%7B1%5Ccdot8%7D%7B125%5Ccdot8%7D%3D%5Cfrac%7B8%7D%7B1000%7D)
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ж)![\frac{3}{4}=\frac{3\cdot25}{4\cdot25}=\frac{75}{100} \frac{3}{4}=\frac{3\cdot25}{4\cdot25}=\frac{75}{100}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7D%3D%5Cfrac%7B3%5Ccdot25%7D%7B4%5Ccdot25%7D%3D%5Cfrac%7B75%7D%7B100%7D)
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з)![\frac{4}{5}=\frac{4\cdot2}{5\cdot2}=\frac{8}{10} \frac{4}{5}=\frac{4\cdot2}{5\cdot2}=\frac{8}{10}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B5%7D%3D%5Cfrac%7B4%5Ccdot2%7D%7B5%5Ccdot2%7D%3D%5Cfrac%7B8%7D%7B10%7D)