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Expressed as a vulgar fraction in its simplest terms, by dividing both the numerator and denominator by 3, 12/21 is equal to 4/7, or four sevenths.

Q: What is 12 over 21 reduced?

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It is 4/21

21/12 as a reduced fraction = 1.75

Reduced to its most simplified form, 21 over 12 (or 7/4) is "one and three-quarters" 13/4

12/21 = 4/7

By dividing both the numerator and denominator by 3, 12/21 can be cancelled down to 4/7, or four sevenths.

13/21 can't be reduced.

21/40 cannot be reduced.

25/21 is already reduced to its lowest terms

736 and 21 are comprime so the fraction cannot be reduced.

The fraction 19/21 cannot be reduced any more.

No.

Yes, 21/3 = 7/1