Сократите дробь \(\Large\frac{7bm^6n}{7^2b^3m^5n^2}.\)

• \(\Large\frac{m}{7b^2n}\)
• \(\Large\frac{m}{2b^3n^2}\)
• \(\Large\frac{b^2n}{2m}\)
• \(\Large\frac{7m^{11}}{14b^4n^3}\)