Ответ:
[tex]g)9\frac{7}{12}-5\frac{2}{3}=3\frac{11}{12};h)8\frac{2}{5}-3\frac{3}{4}=4\frac{13}{20}[/tex] пометь как лучшее решение я старался
Пошаговое объяснение:
[tex]g)9\frac{7}{12}-5\frac{2}{3}=(9-5)+(\frac{7}{12}-\frac{2}{3})=4+(\frac{7}{12}-\frac{8}{12})=\\=3+(\frac{7+12}{12}-\frac{8}{12})=3+(\frac{19}{12}-\frac{8}{12})=3+\frac{11}{12}=3\frac{11}{12}\\h)8\frac{2}{5}-3\frac{3}{4}=(8-3)+(\frac{2}{5}-\frac{3}{4})=5+(\frac{2}{5}-\frac{3}{4})=\\=5+(\frac{8}{20}-\frac{15}{20})=4+(\frac{8+20}{20}-\frac{15}{20})=4+(\frac{28}{20}-\frac{15}{20})=\\=4+\frac{13}{20}=4\frac{13}{20}[/tex]
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Ответ:
[tex]g)9\frac{7}{12}-5\frac{2}{3}=3\frac{11}{12};h)8\frac{2}{5}-3\frac{3}{4}=4\frac{13}{20}[/tex] пометь как лучшее решение я старался
Пошаговое объяснение:
[tex]g)9\frac{7}{12}-5\frac{2}{3}=(9-5)+(\frac{7}{12}-\frac{2}{3})=4+(\frac{7}{12}-\frac{8}{12})=\\=3+(\frac{7+12}{12}-\frac{8}{12})=3+(\frac{19}{12}-\frac{8}{12})=3+\frac{11}{12}=3\frac{11}{12}\\h)8\frac{2}{5}-3\frac{3}{4}=(8-3)+(\frac{2}{5}-\frac{3}{4})=5+(\frac{2}{5}-\frac{3}{4})=\\=5+(\frac{8}{20}-\frac{15}{20})=4+(\frac{8+20}{20}-\frac{15}{20})=4+(\frac{28}{20}-\frac{15}{20})=\\=4+\frac{13}{20}=4\frac{13}{20}[/tex]