21/4 divided by 2/4

21/4 ÷ 2/4
=
21 2
Mixed Number: 10 1/2
Decimal: 10.5
Percentage: 1050%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    2/4 becomes 4/2
  2. 2
    Multiply by reciprocal
    21/4 × 4/2
  3. 3
    Multiply numerators & denominators
    21 × 4 = 84    4 × 2 = 8
  4. 4
    Simplify
    84/8 = 21/2

How to Divide Fractions

To divide fractions, use "Keep, Change, Flip": keep the first fraction unchanged, change the ÷ to ×, then flip the second fraction. Multiply and simplify.

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