Question

Scrieti toate fractiile de forma
$\frac{3x}{20}$ (3x barat)ireductibile.Aceeasi cerinta pentru fractiile de forma $\frac{22}{1x} ; \frac{1x}{24}; \frac{2x}{x4}; \frac{x}{7x}$ (unde este x este barat)

Answer 1

$\frac{3x}{20} ireductibila$
x=1,3,7,9⇒31/20,33/20,37/20,39/20

$\frac{22}{1x} ireductibila$
x=3,5,7,9⇒22/13,22/15,22/17,22/19

$\frac{1x}{24} ireductibila$
x=1,5,7,9⇒11/24,15/24,17/24,19/24

$\frac{2x}{x4} ireductibila$
x=1,3,5,7,9⇒21/14,23/34,25/54,27/74,29/94

$\frac{x}{7x} ireductibila$
x=1,3⇒1/71,3/73