Ответ:
Пошаговое объяснение:
[tex]\frac{2}{9} +\frac{3}{5} =\frac{10}{45} +\frac{27}{45} =\frac{37}{45} \\ \\ \frac{4}{9} +\frac{1}{6} =\frac{8}{18}+\frac{3}{18}=\frac{11}{18}\\ \\ \frac{1}{18} +\frac{5}{12} =\frac{2}{36} +\frac{15}{36} =\frac{17}{36} \\ \\ \frac{3}{10} +\frac{2}{15} =\frac{9}{30}+\frac{4}{30} =\frac{13}{30} \\ \\ \frac{6}{7}-\frac{2}{3} =\frac{18}{21} -\frac{14}{21} =\frac{4}{21} \\ \\ \frac{11}{12}-\frac{5}{6} =\frac{11}{12} -\frac{10}{12}=\frac{1}{12} \\ \\[/tex]
[tex]\frac{7}{12} -\frac{3}{8}=\frac{14}{24}-\frac{9}{24} =\frac{5}{24} \\ \\ \frac{9}{14}-\frac{17}{35}=\frac{45}{70}-\frac{34}{70}=\frac{11}{70}[/tex]
1) =37/45=0,82
2) =11/18=0,61
3) =17/36=0,472
4) =13/30=0,43
5) =4/21=0,190476
6) =1/12=0,083
7) =5/24=0,2083
8) =11/70=0,1571428
100% правильно
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Answers & Comments
Ответ:
Пошаговое объяснение:
[tex]\frac{2}{9} +\frac{3}{5} =\frac{10}{45} +\frac{27}{45} =\frac{37}{45} \\ \\ \frac{4}{9} +\frac{1}{6} =\frac{8}{18}+\frac{3}{18}=\frac{11}{18}\\ \\ \frac{1}{18} +\frac{5}{12} =\frac{2}{36} +\frac{15}{36} =\frac{17}{36} \\ \\ \frac{3}{10} +\frac{2}{15} =\frac{9}{30}+\frac{4}{30} =\frac{13}{30} \\ \\ \frac{6}{7}-\frac{2}{3} =\frac{18}{21} -\frac{14}{21} =\frac{4}{21} \\ \\ \frac{11}{12}-\frac{5}{6} =\frac{11}{12} -\frac{10}{12}=\frac{1}{12} \\ \\[/tex]
[tex]\frac{7}{12} -\frac{3}{8}=\frac{14}{24}-\frac{9}{24} =\frac{5}{24} \\ \\ \frac{9}{14}-\frac{17}{35}=\frac{45}{70}-\frac{34}{70}=\frac{11}{70}[/tex]
Ответ:
1) =37/45=0,82
2) =11/18=0,61
3) =17/36=0,472
4) =13/30=0,43
5) =4/21=0,190476
6) =1/12=0,083
7) =5/24=0,2083
8) =11/70=0,1571428
Пошаговое объяснение:
100% правильно