10/5 divided by 21/3

10/5 ÷ 21/3
=
2 7
Decimal: 0.285714
Percentage: 28.57%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    21/3 becomes 3/21
  2. 2
    Multiply by reciprocal
    10/5 × 3/21
  3. 3
    Multiply numerators & denominators
    10 × 3 = 30    5 × 21 = 105
  4. 4
    Simplify
    30/105 = 2/7

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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