Rigreeshanka toosan: lammaaneyaasha x iyo y

Rigreeshanka, sadar kastaa wuxuu leeyahay $\displaystyle x$ iyo $\displaystyle y$. Riix , , si aad u dooratid rigreeshanka toosan. Qodobka $\displaystyle (2, 5)$ wuxuu yimaadaa laba jeer: 2, , 5, , 2, . Ka dib 12, , 24, . Qodobka $\displaystyle (21, 40)$ wuxuu yimaadaa saddex jeer: 21, , 40, , 3, . Ka dib 15, , 25, . wuxuu xiraa shaxda: 0..