Answer :

[tex]5.065+25+1.3=30.065+1.3=31.365\\\\|-30|+|22|=30+22=52\\\\12\frac{1}{4}-9\frac{3}{4}=11\frac{5}{4}-9\frac{3}{4}=2\frac{2}{4}=2\frac{1}{2}[/tex]

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