Привет всем помогите пж номер:237(2,3)-приведите дробь!,номер:238(2,3)-приведите дробь!
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![](https://st.uroker.com/files/8cd/8cd07b03b5ffc1d7eec5435921e70058.jpg)
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237
2.![frac{x}{2y} * 2 = frac{2x}{4y} frac{x}{2y} * 2 = frac{2x}{4y}](https://tex.z-dn.net/?f=+frac%7Bx%7D%7B2y%7D+%2A+2+%3D++frac%7B2x%7D%7B4y%7D+)
![frac{x}{2y} * y = frac{xy}{4 y^{2} } frac{x}{2y} * y = frac{xy}{4 y^{2} }](https://tex.z-dn.net/?f=+frac%7Bx%7D%7B2y%7D+%2A+y+%3D++frac%7Bxy%7D%7B4+y%5E%7B2%7D+%7D+)
![frac{x}{2y} * 2x = frac{2 x^{2} }{4xy} frac{x}{2y} * 2x = frac{2 x^{2} }{4xy}](https://tex.z-dn.net/?f=+frac%7Bx%7D%7B2y%7D+%2A+2x+%3D++frac%7B2+x%5E%7B2%7D+%7D%7B4xy%7D+)
![frac{x}{2y} * 3 x^{2} y = frac{3 x^{3} }{6 x^{2} y^{2} } frac{x}{2y} * 3 x^{2} y = frac{3 x^{3} }{6 x^{2} y^{2} }](https://tex.z-dn.net/?f=+frac%7Bx%7D%7B2y%7D+%2A+3+x%5E%7B2%7D+y+%3D++frac%7B3+x%5E%7B3%7D+%7D%7B6+x%5E%7B2%7D++y%5E%7B2%7D+%7D+)
![frac{x}{2y} * 4 y^{2} = frac{4x y^{2} }{8 y^{3} } frac{x}{2y} * 4 y^{2} = frac{4x y^{2} }{8 y^{3} }](https://tex.z-dn.net/?f=+frac%7Bx%7D%7B2y%7D+%2A+4+y%5E%7B2%7D+%3D++frac%7B4x+y%5E%7B2%7D+%7D%7B8+y%5E%7B3%7D+%7D+)
3.![frac{p+q}{pq} * p = frac{ p^{2} + pq}{ p^{2} q} frac{p+q}{pq} * p = frac{ p^{2} + pq}{ p^{2} q}](https://tex.z-dn.net/?f=+frac%7Bp%2Bq%7D%7Bpq%7D+%2A+p+%3D++frac%7B+p%5E%7B2%7D+%2B+pq%7D%7B+p%5E%7B2%7D+q%7D+)
![frac{p+q}{pq} * q = frac{pq + q^{2} }{p q^{2} } frac{p+q}{pq} * q = frac{pq + q^{2} }{p q^{2} }](https://tex.z-dn.net/?f=+frac%7Bp%2Bq%7D%7Bpq%7D+%2A+q+%3D++frac%7Bpq+%2B+q%5E%7B2%7D+%7D%7Bp+q%5E%7B2%7D+%7D+)
![frac{p+q}{pq} * pq = frac{ p^{2}q + q^{2} p}{ p^{2} q^{2} } frac{p+q}{pq} * pq = frac{ p^{2}q + q^{2} p}{ p^{2} q^{2} }](https://tex.z-dn.net/?f=+frac%7Bp%2Bq%7D%7Bpq%7D+%2A+pq+%3D++frac%7B+p%5E%7B2%7Dq+%2B+++q%5E%7B2%7D+p%7D%7B+p%5E%7B2%7D++q%5E%7B2%7D+%7D+)
![frac{p+q}{pq} * 4 = frac{4p+4q}{4pq} frac{p+q}{pq} * 4 = frac{4p+4q}{4pq}](https://tex.z-dn.net/?f=+frac%7Bp%2Bq%7D%7Bpq%7D++%2A+4+%3D++frac%7B4p%2B4q%7D%7B4pq%7D+)
![frac{p+q}{pq} * ( -1^{-1} ) = frac{p+q}{-pq} frac{p+q}{pq} * ( -1^{-1} ) = frac{p+q}{-pq}](https://tex.z-dn.net/?f=+frac%7Bp%2Bq%7D%7Bpq%7D++%2A+%28+-1%5E%7B-1%7D+%29++%3D++frac%7Bp%2Bq%7D%7B-pq%7D+)
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