Explicação passo-a-passo:
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Oi, tudo bem??
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[tex] - \dfrac{3}{4} - \dfrac{1}{2} [/tex]
[tex] - \dfrac{3 + 2}{4} [/tex]
[tex] - \dfrac{5}{4} [/tex]
.
[tex]4 + \dfrac{1}{2} - \dfrac{2}{3} [/tex]
[tex] \dfrac{24 + 3 - 4}{6} [/tex]
[tex] \dfrac{23}{6} [/tex]
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[tex] \dfrac{3}{5} - \dfrac{3}{4} + \dfrac{3}{10} [/tex]
[tex] \dfrac{12 - 15 + 6}{20} [/tex]
[tex] \dfrac{3}{20} [/tex]
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[tex] - \dfrac{3}{7} \times - \dfrac{2}{3} [/tex]
[tex] \dfrac{6 \div 3}{21 \div 3} [/tex]
[tex] \dfrac{2}{7} [/tex]
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[tex] - 4 \times \dfrac{1}{3} \times - \dfrac{1}{2} [/tex]
[tex] \dfrac{4 \div 2}{6 \div 2} [/tex]
[tex] \dfrac{2}{3} [/tex]
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[tex] \dfrac{2}{3} \times - \dfrac{1}{5} \times + \dfrac{3}{2} [/tex]
[tex] - \dfrac{6 \div 6}{30 \div 6} [/tex]
[tex] - \dfrac{1}{5} [/tex]
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[tex] - \dfrac{4}{5} \div \dfrac{2}{3} [/tex]
[tex] - \dfrac{4}{5} \times \dfrac{3}{2} [/tex]
[tex] - \dfrac{12 \div 2}{10 \div 6} [/tex]
[tex] - \dfrac{6}{5} [/tex]
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[tex] \dfrac{1}{10} \div \dfrac{1}{10} [/tex]
[tex] \dfrac{1}{10} \times \dfrac{10}{1} [/tex]
[tex] \dfrac{10}{10} [/tex]
[tex]1[/tex]
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[tex] - \dfrac{6}{7} \div - 5[/tex]
[tex] - \dfrac{6}{7} \times - \dfrac{1}{5} [/tex]
[tex] \dfrac{6}{35} [/tex]
