Cross-Cancelling MULTIPLYING FRACTIONS

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What is cross-cancelling in multiplying fractions?

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Cross-cancelling is a method used to simplify fractions before multiplying them. It involves dividing the numerator of one fraction by a factor of the denominator of the other fraction, if they share a common factor.

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What is the first step in multiplying fractions?

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The first step is to multiply the numerators together and the denominators together, but cross-cancelling can simplify the process.

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What does it mean to simplify a fraction?

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To simplify a fraction means to reduce it to its lowest terms, where the numerator and denominator have no common factors other than 1.

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Why is cross-cancelling useful when multiplying fractions?

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Cross-cancelling makes calculations easier and reduces the size of the numbers, leading to simpler results.

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What do you do if there are no common factors to cross-cancel?

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If there are no common factors, simply multiply the numerators and denominators directly.

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