Find a common denominator for 8 and 12. LCM of 8 and 12 is 24.<br><br>&bull; \(\frac{7}{8} = \frac{7 \times 3}{8 \times 3} = \frac{21}{24}\)<br>&bull; \(\frac{5}{12} = \frac{5 \times 2}{12 \times 2} = \frac{10}{24}\)<br>&bull; \(\frac{21}{24} + \frac{10}{24} = \frac{31}{24}\)<br>&bull; \(\frac{31}{24} = 1\frac{7}{24}\)<br><br>Final Answer: A = 1, B = 7, C = 24