Find the Highest Common Factor (HCF) of 1/2, 3/4, 5/6, and 7/8.
Correct Answer: 1/24
Subject: Mathematics
Explanation: For fractions, HCF = (HCF of Numerators) / (LCM of Denominators).
HCF of (1, 3, 5, 7) = 1.
LCM of (2, 4, 6, 8) = 24.
Therefore, the required HCF = 1/24.