21/4 as a Mixed Number

21/4 as a mixed number is 5 1/4.

How to convert 21/4 to a mixed number

  1. Divide the numerator by the denominator: 21 ÷ 4 = 5 with a remainder of 1.
  2. The quotient 5 is the whole number.
  3. The remainder 1 becomes the new numerator, and the denominator stays 4: 5 1/4.
  4. 1/4 is already in lowest terms, so the answer is 5 1/4.

Check: convert 5 1/4 back to an improper fraction

Multiply the whole number by the denominator and add the numerator: 5 × 4 + 1 = 21, so 5 1/4 = 21/4.

As a decimal, 21/4 = 5.25.

Similar improper fractions

Improper fractionMixed number
13/43 1/4
14/43 1/2
15/43 3/4
17/44 1/4
18/44 1/2
19/44 3/4
22/45 1/2
23/45 3/4

See also: GCF and LCM of 4 and 21.

Another fraction? Use the fraction calculator or browse all improper fractions to mixed numbers.