ну крч вот так 987654321987654321987654321
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ну крч вот так 987654321987654321987654321
1)![1\frac{1}{7} -\frac{23}{49} =\frac{8}{7} -\frac{23}{49} =\frac{56}{49} -\frac{23}{49} =\frac{33}{49} 1\frac{1}{7} -\frac{23}{49} =\frac{8}{7} -\frac{23}{49} =\frac{56}{49} -\frac{23}{49} =\frac{33}{49}](https://tex.z-dn.net/?f=1%5Cfrac%7B1%7D%7B7%7D%20-%5Cfrac%7B23%7D%7B49%7D%20%3D%5Cfrac%7B8%7D%7B7%7D%20-%5Cfrac%7B23%7D%7B49%7D%20%3D%5Cfrac%7B56%7D%7B49%7D%20-%5Cfrac%7B23%7D%7B49%7D%20%3D%5Cfrac%7B33%7D%7B49%7D)
2)![\frac{33}{49} :\frac{22}{147}= \frac{33}{49} *\frac{147}{22}= \frac{33*147}{49*22}= \frac{3*3}{1*2}= \frac{9}{2}=4,5 \frac{33}{49} :\frac{22}{147}= \frac{33}{49} *\frac{147}{22}= \frac{33*147}{49*22}= \frac{3*3}{1*2}= \frac{9}{2}=4,5](https://tex.z-dn.net/?f=%5Cfrac%7B33%7D%7B49%7D%20%3A%5Cfrac%7B22%7D%7B147%7D%3D%20%5Cfrac%7B33%7D%7B49%7D%20%2A%5Cfrac%7B147%7D%7B22%7D%3D%20%20%5Cfrac%7B33%2A147%7D%7B49%2A22%7D%3D%20%5Cfrac%7B3%2A3%7D%7B1%2A2%7D%3D%20%5Cfrac%7B9%7D%7B2%7D%3D4%2C5)
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4)![\frac{4}{25} *2\frac{1}{2}= \frac{4}{25} *\frac{5}{2}= \frac{4*5}{25*2} =\frac{2*1}{5*1}=\frac{2}{5}=0,4 \frac{4}{25} *2\frac{1}{2}= \frac{4}{25} *\frac{5}{2}= \frac{4*5}{25*2} =\frac{2*1}{5*1}=\frac{2}{5}=0,4](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B25%7D%20%2A2%5Cfrac%7B1%7D%7B2%7D%3D%20%5Cfrac%7B4%7D%7B25%7D%20%2A%5Cfrac%7B5%7D%7B2%7D%3D%20%5Cfrac%7B4%2A5%7D%7B25%2A2%7D%20%3D%5Cfrac%7B2%2A1%7D%7B5%2A1%7D%3D%5Cfrac%7B2%7D%7B5%7D%3D0%2C4)
5)![3,75:1\frac{1}{2}= 3,75:1,5=375:15=25 3,75:1\frac{1}{2}= 3,75:1,5=375:15=25](https://tex.z-dn.net/?f=3%2C75%3A1%5Cfrac%7B1%7D%7B2%7D%3D%203%2C75%3A1%2C5%3D375%3A15%3D25)
6)![4,5-0,4+25=29,1 4,5-0,4+25=29,1](https://tex.z-dn.net/?f=4%2C5-0%2C4%2B25%3D29%2C1)