Question

2supra5 impartit 3supara9 minus 2,5

Answer 1

Răspuns

Explicație pas cu pas:

2,5 = 25/10 = 5/2

2/5 : 3/9 - 5/2 = 2/5 x 9/3 - 5/2 = 2/5 x 3 - 5/2 = 6/5 - 5/2 = 12/10 - 25/10 = -13/10

Answer 2

$\frac{2}{5} \div \frac{3}{9} - 2.5 = \frac{2}{5} \times \frac{9}{3} - \frac{25}{10} = \frac{18}{15} - \frac{5}{2} = \\ \frac{6}{5} - \frac{5}{2} = \frac{12}{10} - \frac{25}{10} = \frac{ - 13}{10}$
Asta-i rezolvarea!