Ответ:
1. -4 13/30
2. -13 23/30
3. -5,35
4.-5,5
Пошаговое объяснение
фото
[tex]1)-4\frac{13}{30} \\2)-13\frac{23}{30} \\4)-5\frac{7}{20}\\ 5)-5\frac{1}{2}[/tex]
Пошаговое объяснение:
[tex]1)1\frac{3}{5} +[/tex][tex](-2\frac{5}{6})[/tex]
[tex]-1\frac{3}{5}[/tex] [tex]-2\frac{5}{6} = -1\frac{18}{30} -2\frac{25}{30}[/tex]
[tex]-1\frac{18}{30} -2\frac{25}{30} = -3\frac{43}{30}[/tex]
[tex]-3\frac{43}{30}[/tex] = [tex]-4\frac{13}{30}[/tex]
[tex]2)-5\frac{7}{15}+(-8\frac{3}{10})[/tex]
[tex]-5\frac{7}{15}-8\frac{3}{10} = -5\frac{14}{30} - 8\frac{9}{30}[/tex]
[tex]-5\frac{14}{30} - 8\frac{9}{30} = -13\frac{23}{30}[/tex]
[tex]4)-0.85 +(-4\frac{1}{2})[/tex]
[tex]-\frac{85}{100}-4\frac{1}{2} = -\frac{17}{20} -4\frac{10}{20}[/tex]
[tex]-\frac{17}{20}-4\frac{10}{20}=\frac{x}{y} -4\frac{27}{20}=-5\frac{7}{20}[/tex]
[tex]5)-4\frac{3}{10}+(-1.2)\\-4\frac{3}{10}+-1\frac{2}{10} = -5\frac{5}{10} \\-5\frac{5}{10} = -5\frac{1}{2}[/tex]
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Answers & Comments
Ответ:
1. -4 13/30
2. -13 23/30
3. -5,35
4.-5,5
Пошаговое объяснение
фото
Ответ:
[tex]1)-4\frac{13}{30} \\2)-13\frac{23}{30} \\4)-5\frac{7}{20}\\ 5)-5\frac{1}{2}[/tex]
Пошаговое объяснение:
[tex]1)1\frac{3}{5} +[/tex][tex](-2\frac{5}{6})[/tex]
[tex]-1\frac{3}{5}[/tex] [tex]-2\frac{5}{6} = -1\frac{18}{30} -2\frac{25}{30}[/tex]
[tex]-1\frac{18}{30} -2\frac{25}{30} = -3\frac{43}{30}[/tex]
[tex]-3\frac{43}{30}[/tex] = [tex]-4\frac{13}{30}[/tex]
[tex]2)-5\frac{7}{15}+(-8\frac{3}{10})[/tex]
[tex]-5\frac{7}{15}-8\frac{3}{10} = -5\frac{14}{30} - 8\frac{9}{30}[/tex]
[tex]-5\frac{14}{30} - 8\frac{9}{30} = -13\frac{23}{30}[/tex]
[tex]4)-0.85 +(-4\frac{1}{2})[/tex]
[tex]-\frac{85}{100}-4\frac{1}{2} = -\frac{17}{20} -4\frac{10}{20}[/tex]
[tex]-\frac{17}{20}-4\frac{10}{20}=\frac{x}{y} -4\frac{27}{20}=-5\frac{7}{20}[/tex]
[tex]5)-4\frac{3}{10}+(-1.2)\\-4\frac{3}{10}+-1\frac{2}{10} = -5\frac{5}{10} \\-5\frac{5}{10} = -5\frac{1}{2}[/tex]