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Grade 6 Mathematics · Strand 1: Numbers · Fractions

Subtracting Mixed Numbers

A short Grade 6 Mathematics lesson for the CBE curriculum, part of Numbers: Fractions. Learn it on any phone with notes and slides, then check yourself with a quick quiz and earn XP. This lesson is free.

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  1. 1. What is the Lowest Common Multiple (LCM) of the denominators in 4\frac{1}{3} and 2\frac{1}{4}?

    • A. 7
    • B. 12
    • C. 6
    • D. 24

  2. 2. A market seller has 5\frac{1}{2} kg of maize flour and sells 2\frac{3}{4} kg. How many kilogrammes of maize flour remain? Give your answer as a decimal.

    Type your answer (in kg) in the lesson.

  3. 3. Work out 6\frac{1}{3} - 2\frac{3}{4}.

    • A. 4\frac{1}{12}
    • B. 3\frac{5}{12}
    • C. 3\frac{7}{12}
    • D. 4\frac{5}{12}

  4. 4. What do we call exchanging 1 whole for equal fractional parts (for example, 1 whole for 4 quarters) so that we can subtract a larger fraction?

    Type your answer in the lesson.

  5. 5. To work out 5\frac{2}{7} - 2\frac{5}{7}, you must regroup one whole from 5\frac{2}{7}. Which is the correct regrouped form?

    • A. 4\frac{9}{7}
    • B. 4\frac{7}{7}
    • C. 5\frac{9}{7}
    • D. 4\frac{2}{7}

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