Brush up your maths: answer to simplifying fractions exercise

Simplify 27/30.

27       9 × 3         9
–– = –––––– = –––
30     10 × 3       10

The common factor of 27 and 30 is 3. We divide top and bottom by 3 to get 9/10.

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Last updated: 9 October, 2007.

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