Matemática, perguntado por samantinhasantos393, 5 meses atrás

me ajudem pelo amor de Deus ​

Anexos:

Soluções para a tarefa

Respondido por rodrigojunioro46
0

Resposta:

a 1 76476 b 7675

c 5u43754

  3 &%¨¨%

Explicação passo a passo: c pd tirar uma foto melhor ?


samantinhasantos393: posso
Respondido por osextordq
0

a)\\\frac{1}{3}+\frac{5}{2}\\\\=\frac{2}{6}+\frac{15}{6}\\\\=\frac{2+15}{6}\\\\\mathrm{Somar:}\:2+15=17\\\\=\frac{17}{6}

b)\\\frac{4}{7}-\frac{8}{10}\\\\=\frac{4}{7}-\frac{4}{5}\\\\=\frac{20}{35}-\frac{28}{35}\\\\\mathrm{Somar:}\:20-28=-8\\\\=\frac{-8}{35}\\\\\mathrm{Aplicar\:as\:propriedades\:das\:fracoes}:\\\\=-\frac{8}{35}

c)\\\frac{2}{5}+\frac{3}{6}\\\\=\frac{2}{5}+\frac{1}{2}\\\\=\frac{4}{10}+\frac{5}{10}\\\\=\frac{4+5}{10}\\\\\mathrm{Somar:}\:4+5=9\\\\=\frac{9}{10}

d)\\\frac{6}{7}-\frac{9}{7}\\\\\frac{6-9}{7}\\\\\mathrm{Somar:}\:6-9=-3\\\\=\frac{-3}{7}\\\\=-\frac{3}{7}

e)\\\frac{3}{10}+\frac{4}{2}\\\\=\frac{3}{10}+\frac{20}{10}\\\\\mathrm{Somar:}\:3+20=23\\\\=\frac{23}{10}

f)\\\frac{4}{9}-\frac{8}{6}\\\\=\frac{4}{9}-\frac{12}{9}\\\\=\frac{4-12}{9}\\\\\mathrm{Somar:}\:4-12=-8\\\\=\frac{-8}{9}\\\\=-\frac{8}{9}

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