Multiplied instead of divided.
PRIMARY 6 · MATHEMATICS
Fractions
Top 5 mistakes
Ranked by how often they appear across 32 MOE-aligned practice questions in our archive.
Subtracted denominators (8−4 = 4) then divided 8÷4 = 2.
Took only the denominator of 1/8, ignoring the 3/4 length.
Computed 3×8 = 24 without dividing by the denominator 4.
Subtracted 3/4 - 1/12 = 9/12 - 1/12 = 8/12 = 2/3 and rounded to 4 by visual inspection.
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