[tex]\displaystyle\bf\\a=\frac{1}{12} \ \ ; \ \ b=48 \ \ ; \ \ c=0,6 \ \ ; \ \ d=2,38\\\\1)\\\\a\cdot b=\frac{1}{12} \cdot 48=\frac{1\cdot 48}{12}=4\\\\2)\\\\c-d=0,6-2,38=-1,78\\\\3)\\\\4:(-1,78)=-4:\frac{178}{100} =-4\cdot \frac{100}{178} =-\frac{400}{178} =-2\frac{89}{178} \\\\\\Otvet \ : \ -2,25[/tex]
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[tex]\displaystyle\bf\\a=\frac{1}{12} \ \ ; \ \ b=48 \ \ ; \ \ c=0,6 \ \ ; \ \ d=2,38\\\\1)\\\\a\cdot b=\frac{1}{12} \cdot 48=\frac{1\cdot 48}{12}=4\\\\2)\\\\c-d=0,6-2,38=-1,78\\\\3)\\\\4:(-1,78)=-4:\frac{178}{100} =-4\cdot \frac{100}{178} =-\frac{400}{178} =-2\frac{89}{178} \\\\\\Otvet \ : \ -2,25[/tex]