Question

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ACTIVIDAD 15: RESOLVER LOS CÁLCULOS COMBINADOS ( USAR EL RECUADRO DE CÁLCULOS AUXILIARES)

(3 + 2/3 ) : 1/6 =


2/3 + 1/5 x 10/3 + 5/6 =


( 7/5 - 1 )x 5/13 + 1/2 : 17/2 =



(- 9/8 + 7/4 - 2/3 ) : 5/4 - 20/8 =

Answer 1

Respuesta:

$(3 + \frac{2}{3} ) \div \frac{1}{6} = ( \frac{9}{3} + \frac{2}{3} ) \div \frac{1}{6} = \frac{11}{3} \div \frac{1}{6} = \frac{11}{3} \times 6 = 22$

$\frac{2}{3} + \frac{1}{5} \times \frac{10}{3} + \frac{5}{6} = \frac{2}{3} + \frac{2}{3} + \frac{5}{6} = \frac{4}{6} + \frac{4}{6} + \frac{5}{6} = \frac{13}{6}$

$( \frac{7}{5} - 1 ) \times \frac{5}{13} + \frac{1}{2} \div \frac{17}{2} = ( \frac{7}{5} - \frac{5}{5} ) \times \frac{5}{13} + \frac{1}{2} \times \frac{2}{17} = \frac{2}{5} \times \frac{5}{13} + \frac{1}{2} \times \frac{2}{17} = \frac{2}{13} + \frac{1}{17} = \frac{34}{221} + \frac{13}{221} = \frac{47}{221}$

$( - \frac{9}{8} + \frac{7}{4} - \frac{2}{3} ) \div \frac{5}{4} - \frac{20}{8} = ( - \frac{27}{24} + \frac{42}{24} - \frac{16}{24} ) \div \frac{5}{4} - \frac{20}{8} = ( \frac{15}{24} - \frac{16}{24} ) \div \frac{5}{4} - \frac{20}{8} = - \frac{1}{24} \div \frac{5}{4} - \frac{20}{8} = - \frac{1}{24} \times \frac{4}{5} - \frac{5}{2} = - \frac{1}{30} - \frac{5}{2} = - \frac{1}{30} - \frac{75}{30} = (- \frac{1}{30} ) + ( - \frac{75}{30} ) = - \frac{76}{30} = - \frac{38}{15}$