Question

me ayudan plis doy corazones >.<​

Answer 1

Respuesta:

$a) \frac{4}{6} - \frac{7}{5} + \frac{4}{2} = \\ \frac{20}{30} - \frac{42}{30} + \frac{60}{30} = \\ \frac{20 - 42 + 60}{30} = \\ \frac{38}{30} = \frac{19}{15} =1.27$

$b) - \frac{4}{5} + \frac{2}{4} - \frac{1}{2} = \\ - \frac{16}{20} + \frac{10}{20} - \frac{10}{20 } = \\ \frac{ - 16 + 10 - 10}{20} = \\ - \frac{16}{20} = - \frac{4}{5} = - 0.8$