Ответ:
1)
[tex] \frac{7a - 8}{12 } [/tex]
2)
[tex] \frac{y}{14} [/tex]
3)
[tex] \frac{ - 12y + 7x}{4xy} [/tex]
4)
[tex] \frac{ - 4 {}^{2} + 15m {}^{2} }{12mn} [/tex]
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Ответ:
1)
[tex] \frac{7a - 8}{12 } [/tex]
2)
[tex] \frac{y}{14} [/tex]
3)
[tex] \frac{ - 12y + 7x}{4xy} [/tex]
4)
[tex] \frac{ - 4 {}^{2} + 15m {}^{2} }{12mn} [/tex]