Best Answer

Because 23 is a Prime number, 21/23 is in its reduced form.

You can make the fraction "un-reduced," so-to-speak, and multiply the numerator and the denominator by the same number.

For example, multiply by 2/2 (which equals 1) so that the answer would be 42/46. 42/46 is an equivalent fraction to 21/23.

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Q: What is the equivalent fraction to 21 over 23?
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