21/7 divided by 51/7

21/7 ÷ 51/7
=
7 17
Decimal: 0.411765
Percentage: 41.18%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    51/7 becomes 7/51
  2. 2
    Multiply by reciprocal
    21/7 × 7/51
  3. 3
    Multiply numerators & denominators
    21 × 7 = 147    7 × 51 = 357
  4. 4
    Simplify
    147/357 = 7/17

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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