Question

holaaaaaaaaaaaa
$me \: ayudan$
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Answer 1

Explicación paso a paso:

a.

$\frac{16}{7} \div \frac{32}{14} - \frac{12}{25} \times \frac{5}{24} = \\ \frac{224}{224} - \frac{12}{25} \times \frac{5}{24} = \\ 1 - \frac{60}{600} = \\ 1 - \frac{1}{10} = \\ \frac{10}{10} - \frac{1}{10} = \frac{9}{10}$

b.

$- \frac{13}{25} \times \frac{125}{26} - ( - 2 + \frac{3}{4} ) = \\ - \frac{1625}{650} + 2 - \frac{3}{4} = \\ 2 \frac{1}{2} + 2 - \frac{3}{4} = \\ 4 \frac{1}{2} - \frac{3}{4} = \\ \frac{18}{4} - \frac{3}{4} = \frac{15}{4} = 3 \frac{3}{4}$