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[tex]1,25-7\frac{3}{4}:4,(3)=[/tex]
[tex]= \frac{125}{100}^{(25} -\frac{7*4+3}{4} : \frac{43-4}{9} =[/tex]
[tex]=\frac{5}{4} -\frac{31}{4} * \frac{9}{39}=[/tex]
[tex]=^{13)} \frac{5}{4} -\frac{93}{52} =[/tex]
[tex]=-\frac{28}{52}^{(4} =[/tex]
[tex]=-\frac{7}{13}[/tex]
