Question

modul din 3 supra4-4supra3-3supra20

Answer 1

$\frac{3}{4} - \frac{4}{3} - \frac{3}{20} = \\ \frac{45}{60} - \frac{80}{60} - \frac{9}{60} = \\ \frac{45 - 80 - 9}{60} = \\ \frac{ - 54}{60} = - 0.9$

|-0.9|=0.9