Multiplying Fractions

Learn how to multiply fractions using cross-cancelling, including mixed numbers. Let's get started! 🚀

Multiplying Fractions - introduction visual

Video Lesson

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Flashcards

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Explanation of how to multiply fractions using the general method and cross-cancelling method, showing steps and simplification.Cross-cancelling method for multiplying fractions 1/2 and 3/5, showing the simplified result as 3/10.Multiplication of 88 piano keys by the fraction 13/22 to find the number of black keys, resulting in 52.Explanation of handling mixed fractions by converting them into improper fractions, with the correct answer highlighted as 17.

🛎️ Multiplying Fractions (General Method)

  • Multiply the numerators together and multiply the denominators together.
  • Then simplify the fraction, if possible.

🛎️ Multiplying Fractions (Cross-Cancelling)

  • You can simplify first by cross-cancelling a numerator with a denominator.
  • Cross-cancelling makes the numbers smaller and easier to multiply.

🛎️ Multiplying a Fraction by a Whole Number

  • Write the whole number as a fraction over 1.
  • Then multiply as you would with two fractions.

🛎️ Multiplying Mixed Fractions

  • Convert mixed numbers into improper fractions first.
  • Then multiply and simplify the final answer.

Practice Questions

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Interactive Activity

Master cross-cancellation across different formats

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