Question by Quoc Tran Anh Le - Discuss with MathYouLike

Quoc Tran Anh Le Coordinator

07/08/2018 at 05:30

One of the following fractions does not fit the pattern set by the others. Which is the odd one out, and what should the correct fraction be?

\(\dfrac{1}{2};\dfrac{1}{3};\dfrac{1}{4};\dfrac{1}{5};\dfrac{1}{6};\dfrac{1}{9};\dfrac{1}{12};\dfrac{1}{19};\dfrac{1}{36}\)

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Lê Anh Duy 07/08/2018 at 10:34

First 3 fractions:

2 x 3 = 6 (the 5^th)

3 x 3 = 9 (the 6^th)

4 x 3 = 12 (the 7^t^h)

Continue with the next 3 fractions:

5 x 6 = 30 (the 8^th)

6 x 6 = 36 (the 9^th)

9 x 6 = 54 (the 10^th)

So \(\dfrac{1}{19}\) is incorrect and should be replaced with \(\dfrac{1}{30}\)
Quoc Tran Anh Le selected this answer.

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