This math topic involves practicing the process of converting logarithms to different bases using fractional representations. The problems focus on changing logarithms with various original bases to specified new bases, such as base 6, base 3, base 7, base 10, base 4, and base 5. Each question provides a logarithmic expression along with multiple-choice answers in the form of different logarithmic expressions converted into the target base. The exercises are designed to enhance understanding and application of the logarithm base change formula.