Question

me pueden ayudar por favor​

Answer 1

Explicación paso a paso:

$1) \\ \frac{8}{16} \times \frac{5}{5} = \frac{40}{80} = \frac{1}{2} \\ \\ 2) \\ \frac{2}{5} - \frac{1}{7} + \frac{12}{3} = \\ \\ \frac{2}{5} - \frac{1}{7} + 4 = \frac{14 - 5 + 140}{35} = \frac{149}{35} \\ \\ 3) \\ \frac{12}{9} + \frac{7}{4} = \frac{48 + 63}{36} = \frac{111}{36} = \frac{37}{12} \\ \\ 4) \\ \frac{8}{5} + \frac{1}{4} = \frac{32 + 5}{20} = \frac{37}{20} \\ \\ 5) \\ \frac{2}{7} + \frac{5}{4} = \frac{8 + 35}{28} = \frac{43}{28} \\ \\ 6) \\ \frac{18}{11} \times \frac{3}{5} \times \frac{2}{5} = \frac{108}{275}$