15/5 divided by 21/6

15/5 ÷ 21/6
=
6 7
Decimal: 0.857143
Percentage: 85.71%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    21/6 becomes 6/21
  2. 2
    Multiply by reciprocal
    15/5 × 6/21
  3. 3
    Multiply numerators & denominators
    15 × 6 = 90    5 × 21 = 105
  4. 4
    Simplify
    90/105 = 6/7

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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