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The HCF of the fractions 2/3, 8/9, 16/81 and 10/27 is:

Competition practiceNumber & Arithmetic
  • A2/3
  • B2/81
  • C16/3
  • D8/81

Step-by-Step Solution

For fractions, HCF = HCF of the numerators ÷ LCM of the denominators. HCF(2, 8, 16, 10) = 2 and LCM(3, 9, 81, 27) = 81, so the answer is 2/81. Swapping the two rules would wrongly give 16/3.
Answer: B) 2/81

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