Question

Adunați la forma ireductibila:
A) 2 supra 25 • 5 supra 9 =
B) 8 supra 12 • 9 supra 28=
C) 4 supra 11 • 2 întregi si 4 supra 9=

Answer 1

   
[tex]\displaystyle\\ A)~~\frac{2}{25}\times\frac{5}{9}=\frac{2}{5}\times\frac{1}{9}=\frac{2}{45}\\\\\\ B)~~ \frac{8}{12}\times \frac{9}{28}=\frac{2}{3}\times \frac{9}{28}=\frac{1}{1}\times \frac{3}{14}= \frac{3}{14} \\\\\\ C)~~\frac{4}{11}\times 2\frac{4}{9}=\frac{4}{11}\times \frac{2\times9 +4}{9} =\frac{4}{11}\times \frac{22}{9}=\frac{4}{1}\times \frac{2}{9}=\frac{8}{9}[/tex]