Пошаговое объяснение:
1) -56 + 44 = -12
2) -384,56 + (-126,34) = -384,56 - 126,34 = -510,9
3) -13,356 + (-8,93) = -13,356 - 8,93 = -22,286
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Пошаговое объяснение:
1) -56 + 44 = -12
2) -384,56 + (-126,34) = -384,56 - 126,34 = -510,9
3) -13,356 + (-8,93) = -13,356 - 8,93 = -22,286
4)![-\frac{4}{9} + (-\frac{3}{5} ) = - \frac{4}{9} - \frac{3}{5} = \frac{-20 - 27}{45} = \frac{-47}{45} = 1\frac{2}{45}](/tpl/images/1766/8627/ab18c.png)
5)![-\frac{11}{25} + (- \frac{13}{5} ) = -\frac{11}{25} - \frac{13}{5} = \frac{-11 - 65}{25} = \frac{-76}{25} = -3\frac{1}{25}](/tpl/images/1766/8627/60850.png)
6)![-\frac{7}{24} + (-\frac{5}{12} ) = -\frac{7}{24} -\frac{5}{12} = \frac{-7 - 10}{24} = -\frac{17}{24}](/tpl/images/1766/8627/979fb.png)
7)![-\frac{9}{14} + (-\frac{13}{21} ) = -\frac{9}{14} -\frac{13}{21} =\frac{-63 - 13}{21} = -\frac{76}{21} = -3\frac{13}{21}](/tpl/images/1766/8627/25450.png)
8)![-\frac{11}{20} + (-\frac{9}{16} ) = -\frac{11}{20} -\frac{9}{16} = \frac{-44 - 45 }{80} = -\frac{89}{80} = -1\frac{9}{80}](/tpl/images/1766/8627/c56dc.png)