Монгол Бодлогын Сан

Заавар: Ижил хуваарь өгч хялбарчил.

Бодолт: $$\begin{split} 1.3&-\dfrac{11}{60}:\left(2\dfrac1{12}-1\dfrac58\right)=\dfrac{13}{10}-\dfrac{11}{60}:\left(\dfrac{25}{12}-\dfrac{13}{8}\right)=\\ &=\dfrac{13}{10}-\dfrac{11}{60}:\left(\dfrac{50}{24}-\dfrac{39}{24}\right)=\dfrac{13}{10}-\dfrac{11}{60}\cdot\dfrac{24}{11}=\dfrac{13}{10}-\dfrac{4}{10}=\dfrac{9}{10} \end{split}$$