ꯀꯔꯤꯒꯨꯝꯕꯥ $\dfrac{a}{b} = \dfrac{3}{5}$ ꯑꯣꯏꯔꯕꯗꯤ, $\dfrac{a+b}{a-b}$ꯒꯤ ꯚꯦꯜꯌꯨ ꯑꯗꯨ ꯈꯪꯗꯣꯀꯎ꯫

ꯀꯝꯄꯣꯅꯦꯟꯗꯣ-ꯗꯤꯚꯤꯗꯦꯟꯗꯣ ꯑꯥꯏꯗꯦꯟꯇꯤꯇꯤꯅꯥ, ꯀꯔꯤꯒꯨꯝꯕꯥ $\dfrac{a}{b} = \dfrac{c}{d}$ ꯑꯣꯏꯔꯕꯗꯤ $\dfrac{a+b}{a-b} = \dfrac{c+d}{c-d}$. ꯄ꯭ꯂꯒ ꯏꯟ $c = 3, d = 5$: $\dfrac{3+5}{3-5} = \dfrac{8}{-2} = -4$. ꯀꯃꯟ ꯁ꯭ꯂꯤꯞ ꯑꯃꯗꯤ ꯁꯥꯏꯟ ꯑꯗꯨ ꯊꯥꯗꯣꯛꯇꯨꯅꯥ ꯑꯣꯄꯁꯟ C ꯄꯤꯛꯅꯥ $a < b$ꯗꯥ ꯄꯨꯛꯅꯤꯡ ꯆꯪꯕꯤꯌꯨ, ꯃꯁꯤꯅꯥ ꯅꯦꯒꯦꯇꯤꯚ ꯗꯦꯅꯣꯃꯤꯅꯦꯇꯔ ꯑꯃꯥ ꯐꯣꯔꯁ ꯇꯧꯏ꯫