The numerators are 11 and 5, both of which are prime numbers. The denominators are 10 and 11. 10 can be factored into 2 and 5, and 11 is a prime number. So, we have:
$$\frac{11}{10} \cdot \frac{5}{11} = \frac{11 \cdot 5}{2 \cdot 5 \cdot 11}$$
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