Question

a (2/3 +1/2-3/4):25/240 urgentz

Answer 1

(8/12+6/12-9/12):25/240 (prima fractie se amplifica cu 4, a doua cu 6 si a treia cu 3)
14/12-9/12:25/240
5/12:25/240
5/12x 240/25 (se inveseaza fractia si se imulteste
20/5=4/1(se reduce cu 5)

Answer 2

 [tex](\frac{2}{3} + \frac{1}{2} - \frac{3}{4} ): \frac{25}{240} =( \frac{8}{12} + \frac{6}{12} - \frac{9}{12)} ): \frac{48}{5} = \frac{5}{12} : \frac{48}{5} = \frac{5}{12} inmultit ,cu \frac{5}{48} =\frac{25}{576}  [tex]