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[tex]a)8\frac{1}{4} +3\frac{5}{12} =8\frac{3}{12} +3\frac{5}{12}=11\frac{8}{12} =11\frac{2}{3} \\ \\ b)7\frac{2}{5} +5\frac{2}{15}= 7\frac{6}{15} +5\frac{2}{15}=12\frac{8}{15} \\ \\ c)3\frac{1}{5} +5\frac{1}{3}=3\frac{3}{15}+5\frac{5}{15} =8\frac{8}{15} \\ \\ d) 6\frac{1}{7} +3\frac{1}{2}=6\frac{2}{14}+3\frac{7}{14} =9\frac{9}{14} \\ \\ e)10\frac{1}{4} -8\frac{1}{3}= 10\frac{3}{12} -8\frac{4}{12}=9\frac{15}{12} -8\frac{4}{12} =1\frac{11}{12}\\ \\[/tex]
[tex]f)15\frac{5}{7}-9\frac{3}{4} =15\frac{20}{28}-9\frac{21}{28} =14\frac{48}{28} -9\frac{21}{28}=5\frac{27}{28} \\ \\ g)9\frac{8}{14} -3\frac{3}{4}=9\frac{16}{28} -3\frac{21}{28} =8\frac{44}{28} -3\frac{21}{28}=5\frac{23}{28}\\ \\ h)8\frac{3}{8} -6\frac{1}{12} =8\frac{9}{24} -6\frac{2}{24} =2\frac{7}{24}[/tex]
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Answers & Comments
Відповідь:
Покрокове пояснення:
Ответ:
Пошаговое объяснение:
[tex]a)8\frac{1}{4} +3\frac{5}{12} =8\frac{3}{12} +3\frac{5}{12}=11\frac{8}{12} =11\frac{2}{3} \\ \\ b)7\frac{2}{5} +5\frac{2}{15}= 7\frac{6}{15} +5\frac{2}{15}=12\frac{8}{15} \\ \\ c)3\frac{1}{5} +5\frac{1}{3}=3\frac{3}{15}+5\frac{5}{15} =8\frac{8}{15} \\ \\ d) 6\frac{1}{7} +3\frac{1}{2}=6\frac{2}{14}+3\frac{7}{14} =9\frac{9}{14} \\ \\ e)10\frac{1}{4} -8\frac{1}{3}= 10\frac{3}{12} -8\frac{4}{12}=9\frac{15}{12} -8\frac{4}{12} =1\frac{11}{12}\\ \\[/tex]
[tex]f)15\frac{5}{7}-9\frac{3}{4} =15\frac{20}{28}-9\frac{21}{28} =14\frac{48}{28} -9\frac{21}{28}=5\frac{27}{28} \\ \\ g)9\frac{8}{14} -3\frac{3}{4}=9\frac{16}{28} -3\frac{21}{28} =8\frac{44}{28} -3\frac{21}{28}=5\frac{23}{28}\\ \\ h)8\frac{3}{8} -6\frac{1}{12} =8\frac{9}{24} -6\frac{2}{24} =2\frac{7}{24}[/tex]