【Question 2】 Arrange $\frac{2}{3}, \frac{5}{8}, \frac{15}{23}, \frac{10}{17}$ in ascending order
(Solution 1) First, convert the fractions to decimal form: $\frac{2}{3} \approx 0.666, \frac{5}{8}=0.625, \frac{15}{23} \approx 0.652, \frac{10}{17} \approx 0.588$ By comparing the size of the decimals, the order from smallest to largest is $\frac{10}{17}<\frac{5}{8}<\frac{15}{23}<\frac{2}{3}$

$\frac{8}{5}>\frac{23}{15}>\frac{3}{2}$, the original fraction is smaller if its reciprocal is larger, so $\frac{10}{17}<\frac{5}{8}<\frac{15}{23}<\frac{2}{3}$