Question

operaciones combinadas con fracciones ​

Answer 1

Explicación paso a paso:

$( \frac{5}{4} \times \frac{2}{3} ) + ( \frac{1}{4} \times \frac{4}{3} ) = \\ \frac{10}{12} + \frac{4}{12} = \frac{14}{12} = \frac{7}{6}$

2-----

$(5 + \frac{1}{2} ) \times (2 \div \frac{1}{3}) = \\ ( \frac{10}{2} + \frac{1}{2} ) \times ( \frac{ \frac{ \frac{2}{1} }{1} }{3} ) \\ = \frac{11}{2} \times ( \frac{2}{1} \times \frac{3}{1}) = \frac{11}{2} \times 6 = \\ \\ \frac{66}{2} = 33$

3-----

$\frac{5}{4} + \frac{4}{9} \times \frac{3}{8} = \frac{5}{4} \times \frac{12}{72} \\ \frac{12}{72} = \frac{1}{6} \\ \frac{5}{4} + \frac{1}{6} = \frac{30}{24} + \frac{4}{34} = \frac{34}{24} = \frac{17}{12}$

$\frac{5}{4} \times \frac{6}{6} = \frac{30}{24} \\ \\ \frac{1}{6} \times \frac{4}{4} = \frac{4}{24}$

espero te sirva