Question

(-4/5):(+8/5)-(+2):(-5/4)
Me ajudem urgente

Answer 1

$\ \ \ (- \frac{4}{5}) :(+ \frac{8}{5}) -(+2) :(- \frac{5}{4})\\ \\=(- \frac{4}{5}) \cdot(+ \frac{5}{8}) -(+2) \cdot (- \frac{4}{5})\\ \\=(- \frac{20^{:20}}{40_{:20}}) -(- \frac{8}{5})\\ \\=- \frac{1}{2} +\frac{8}{5}\\ \\=- \frac{5}{10} +\frac{16}{10}\\ \\= \frac{-5+16}{10}\\ \\=\frac{11}{10}$