Odpowiedź:
[tex]\frac{12g-4}{2}[/tex] - [tex]\frac{10g - 1}{5}[/tex] = [tex]\frac{5(12g-4)}{10}[/tex] - [tex]\frac{2(10g-1)}{10}[/tex] = [tex]\frac{60g-20}{10}[/tex] - [tex]\frac{20g-2}{10}[/tex] = [tex]\frac{(60g-20)-(20g-2)}{10}[/tex] = [tex]\frac{60g-20-20g+2}{10}[/tex] = [tex]\frac{40g-18}{10}[/tex] = [tex]\frac{20g-9}{5}[/tex] = 4g - [tex]\frac{9}{5}[/tex] = 4g - 1[tex]\frac{4}{5}[/tex]
