Question

ayuda ayuda ayudaaa por favor​

Answer 1

Respuesta:

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Answer 2

Respuesta:

a)

$\frac{3}{7} .( \frac{5}{2} + \frac{6}{8}) = \frac{3}{7} . \frac{5}{2} + \frac{3}{7} . \frac{6}{8} = \frac{15}{14} + \frac{18}{56} = \frac{15.4}{14.4} + \frac{18}{56} = \frac{60}{56} + \frac{18}{56} = \frac{78}{56} = \frac{39}{28}$

b)

$\frac{10}{4} .( \frac{6}{9} - \frac{8}{3} ) = \frac{10}{4} . \frac{6}{9} - \frac{10}{4} . \frac{8}{3} = \frac{60}{36} - \frac{80}{12} = \frac{60}{36} - \frac{80 . 3}{12.3} = \frac{60}{36} - \frac{240}{36} = - \frac {180}{36} = - \frac{5}{1}$