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Apuntes

U. E. Colegio Don Bosco Nva. Barcelona Urb. El Ingenio. Avenida Idelfonso Lovera c/c Calle 4. Nueva Barcelona Telf. 2758555. Fax 2747296 e-mail: donbosco.bcn@cantv.net Web: www.donbosco.com Barcelona - Estado Anzoátegui. Venezuela **MATEMÁTICAS 1° AÑO** **III LAPSO (2020 - 2021)** **OPERACIONES COMBINADAS** 1. $$\left[\left(-\frac{4}{5} + \frac{2}{3}\right) \div \frac{1}{5}\right] \div \left(-\frac{1}{4} + \frac{1}{8}\right)$$ 2. $$\frac{\left(\frac{2}{3} + \frac{4}{5}\right) \div \frac{4}{3} \left(\frac{1}{5} - \frac{3}{2}\right)}{2\frac{1}{2} + 2}$$ 3. $$\frac{-\frac{13}{24} + \frac{5}{2} + \frac{1}{4} - \frac{3}{2} - \frac{9}{4} \cdot \frac{1}{2}}{2}$$ 4. $$\frac{\left[\frac{4}{3} + \frac{1}{3} + \left(-\frac{2}{5}\right)\right] \div \left(-\frac{1}{5}\right)}{-\frac{17}{3}}$$ 5. $$\frac{\frac{1}{10} - \frac{18}{5} \left[\frac{2}{9} + \left(\frac{4}{6} - \frac{1}{3}\right) - \frac{2}{5}\right]}{\frac{5}{3} \div \frac{2}{3} + \frac{1}{2}}$$ Prof. Emelyn Hernandez