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Math Drills

Fractions Review

D-2

Word Problems (Subtraction)

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What this worksheet covers

Mixed numbers join in here, and calculations that treat the whole-number part and the fraction part separately begin. Once same-denominator addition and subtraction are confirmed through Calculation, Fill in the Blank and Word Problems, the work moves to subtraction With Borrowing, whole number minus fraction, whole number minus mixed number, and sums of three fractions.

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When borrowing with mixed numbers, children take 1 from the whole-number part without adding the denominator to the numerator, so the numerator comes out short by exactly the denominator. For 3 minus 1 and 3/4, some subtract only the whole numbers and copy the fraction part straight into the answer.

The basic move of adding or subtracting fractions while the denominators stay fixed was already covered once in Fractions in grade 3. What is added here is the mixed number, a whole-number part fused to a fraction, and denominators keep matching until grade 5, when Properties of Fractions introduces the technique of finding a common one.

  • Subtraction of Whole Numbers and Fractions · Word Problems2 questions
  • Subtracting a Mixed Number from a Whole Number · Word Problems2 questions
Questions & answers

Problems and answers on this worksheet

These are the problems in “Fractions”, shown with their answers.

  1. (1)At Grandma's house, Riley prepared 1L of vinegar. Riley used 5/12L to make sushi. How much vinegar is left, in how many L? Answer □

    Answer: 7/12L

  2. (2)In the kitchen, Noah prepared 1L of oil. He used 4/9L for frying. How much oil is left, in how many L? Answer □

    Answer: 5/9L

  3. (3)In the morning, Sam has 5L of milk. The family drank 2 3/7L. How much milk is left, in how many L? Answer □

    Answer: 2 4/7L

  4. (4)In the craft club, Henry has 4m of tape. For today's project he cut off 1 3/5m. How much tape is left, in how many m? Answer □

    Answer: 2 2/5m

What to do next

Adding Fractions with the Same DenominatorAdding Fractions with the Same Denominator Calculation
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Next unit: Investigating Patterns of Change
Other versions of this worksheet

Other versions of this worksheet