21/4 divided by 8/4

21/4 ÷ 8/4
=
21 8
Mixed Number: 2 5/8
Decimal: 2.625
Percentage: 262.5%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    8/4 becomes 4/8
  2. 2
    Multiply by reciprocal
    21/4 × 4/8
  3. 3
    Multiply numerators & denominators
    21 × 4 = 84    4 × 8 = 32
  4. 4
    Simplify
    84/32 = 21/8

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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