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4. Mealiza la fíquientef operacióne - \( \frac{2}{5}+\frac{3}{5} \) \[ \frac{7}{6}+\frac{5}{6} \] \[ -\frac{4}{3} \div \frac{2}{3} \] \[ -1 \frac{1}{2}+2 \frac{2}{3} \] \[ 3 \cdot 5 \div \frac{2}{3} \] \[ \frac{5}{12}+\frac{7}{8} \quad 17 \cdot \frac{-3}{4}-\frac{2}{3} \] \[ \frac{2}{5} \times \frac{3}{4} \times \frac{7}{10} \quad 20 \cdot \frac{5}{6} \] \[ \begin{array}{l} \frac{2}{3}+\frac{3}{4} \\ 2 \frac{1}{4}+3 \frac{3}{4} \\ s \cdot \frac{9}{14} \times \frac{7}{9} \\ -\frac{8}{7} \div \frac{2}{5} \\ \text { - } \frac{5}{8}+\frac{1}{4} \\ \text { - } 2+\frac{3}{5} \\ =\frac{2}{7}+\frac{3}{7}+\frac{4}{7} \\ 12 \cdot \frac{5}{8} \times \frac{3}{8} \\ 14 \cdot \frac{9}{4} \div \frac{3}{5} \\ \text { 15 } \frac{3}{10}+\frac{7}{20} \\ \text { 18. } 5 \frac{3}{4}-2 \frac{1}{2} \\ 21 \cdot \frac{7}{8} \div \frac{3}{8} \end{array} \]

Ask by Bush Herrera. in Colombia
Mar 11,2025

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Aquí están los resultados de las operaciones: 1. \( \frac{2}{5} + \frac{3}{5} = 1 \) 2. \( \frac{7}{6} + \frac{5}{6} = 2 \) 3. \( -\frac{4}{3} \div \frac{2}{3} = -2 \) 4. \( -1 \frac{1}{2} + 2 \frac{2}{3} = \frac{7}{6} \) 5. \( 3 \cdot 5 \div \frac{2}{3} = 22.5 \) 6. \( \frac{5}{12} + \frac{7}{8} = \frac{31}{24} \) 7. \( 17 \cdot \frac{-3}{4} - \frac{2}{3} = -\frac{161}{12} \) 8. \( \frac{2}{5} \times \frac{3}{4} \times \frac{7}{10} = \frac{21}{100} \) 9. \( 20 \cdot \frac{5}{6} = \frac{50}{3} \) 10. \( \frac{2}{3} + \frac{3}{4} = \frac{17}{12} \) 11. \( 2 \frac{1}{4} + 3 \frac{3}{4} = 6 \) 12. \( s \cdot \frac{9}{14} \times \frac{7}{9} = \frac{s}{2} \) 13. \( -\frac{8}{7} \div \frac{2}{5} = -\frac{20}{7} \) 14. \( -\frac{5}{8} + \frac{1}{4} = -\frac{3}{8} \) 15. \( -2 + \frac{3}{5} = -\frac{7}{5} \)

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Beyond the Answer

¡Vamos a hacer que las fracciones y las operaciones sean divertidas! Para añadir fracciones como \(\frac{2}{5}+\frac{3}{5}\), asegúrate de que tengan el mismo denominador. Así que simplemente sumas los numeradores y mantienes el denominador: \(2+3=5\), por lo que, \(\frac{2}{5}+\frac{3}{5}=\frac{5}{5}=1\)! Ahora, cuando tienes una fracción negativa como \(-\frac{4}{3}\) dividida por otra, recuerda que dividir por una fracción es lo mismo que multiplicar por su inversa. Por lo tanto, \(-\frac{4}{3} \div \frac{2}{3}\) se convierte en \(-\frac{4}{3} \times \frac{3}{2}\), que resulta en \(-2\). ¡Menos complicado de lo que parece!

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