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Tom had a very challenging fraction multiplication problem to do, but his sister said it was really easy to do mentally. Can you find the answer mentally? Explain how. 76 over 81 x 80 over 76
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Tom had a very challenging fraction multiplication problem to do, but his sister said it was really easy to do mentally. Can you find the answer mentally? Explain how.

76 over 81 x 80 over 76

User Kaychaks
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2 Answers

9 votes

I think you have to multiply them both normally.

User HeronAlgoSearch
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8 votes
Answer: 80/81

When multiplying (76/81) * (80/76), the 76’s in the numerator and denominator cancel out, so you’re left with 80/81
User Kerisnarendra
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