AQA · Mathematics · 8300
GCSE Maths: Fractions: addition same denominator
Number · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths textbook exercise for Fractions: addition same denominator (Corbettmaths Video 132), and every card links back to the exact page it came from. Practice tests generate fresh variations of these questions, so the numbers change every attempt. Source material © Corbettmaths — used with attribution.
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When adding fractions with the same denominator, what do you add?
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You add the numerators and keep the denominator the same.
What is 2/7 + 3/7?
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5/7. Add the numerators (2 + 3 = 5) and keep the denominator (7).
When subtracting fractions with the same denominator, what operation do you perform?
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You subtract the numerators and keep the denominator the same.
What is 5/8 - 2/8?
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3/8. Subtract the numerators (5 - 2 = 3) and keep the denominator (8).
After adding or subtracting fractions, what should you check about your answer?
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Whether it can be simplified (reduced to lowest terms).
What fraction of a cake remains if someone ate 2/5 and then 1/5 of it?
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2/5 remains. Total eaten is 3/5 (2/5 + 1/5), so 5/5 - 3/5 = 2/5.
If a team won 3/8 of their matches and drew 2/8, what fraction did they lose?
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3/8. They won or drew 5/8 of matches (3/8 + 2/8), so they lost 8/8 - 5/8 = 3/8.
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