18/2 divided by 21/3

18/2 ÷ 21/3
=
9 7
Mixed Number: 1 2/7
Decimal: 1.285714
Percentage: 128.57%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    21/3 becomes 3/21
  2. 2
    Multiply by reciprocal
    18/2 × 3/21
  3. 3
    Multiply numerators & denominators
    18 × 3 = 54    2 × 21 = 42
  4. 4
    Simplify
    54/42 = 9/7

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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