7.2. Agent 007 wants to encrypt his number using two natural numbers $m$ and $n$ such that $0.07=\frac{1}{m}+\frac{1}{n} \cdot$ Can he do this?
Answer: it will. The solution follows from the equality: $0.07=0.05+0.02=\frac{1}{20}+\frac{1}{50}$.