Question

Error Analysis  Suzie claims that the greatest of the numbers below is four fifths
and the least is two sevenths
. Order the numbers from least to greatest. What was Suzie​'s likely​ error?
0.27     0.23     two sevenths
     four fifths
Question content area bottom
Part 1
Order the numbers from least to greatest.
▼
0.23
0.27
two sevenths
four fifths
▼
four fifths
0.23
0.27
two sevenths
▼
0.27
two sevenths
0.23
four fifths
▼
0.27
two sevenths
0.23
four fifths

Answer 1

Least to greatest: 0.23, 0.27, two sevenths, four fifths.

Why Suzie was wrong: 2/7 = 0.285714... which is bigger than 0.27, so it is not the least. Suzie likely converted 2/7 to a decimal incorrectly (or compared numerators/denominators instead of converting), e.g. treating 2/7 as 0.27 or thinking it was less than 0.23.