9/3 divided by 21/5

9/3 ÷ 21/5
=
5 7
Decimal: 0.714286
Percentage: 71.43%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    21/5 becomes 5/21
  2. 2
    Multiply by reciprocal
    9/3 × 5/21
  3. 3
    Multiply numerators & denominators
    9 × 5 = 45    3 × 21 = 63
  4. 4
    Simplify
    45/63 = 5/7

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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