21/6 divided by 42/3

21/6 ÷ 42/3
=
1 4
Decimal: 0.25
Percentage: 25%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    42/3 becomes 3/42
  2. 2
    Multiply by reciprocal
    21/6 × 3/42
  3. 3
    Multiply numerators & denominators
    21 × 3 = 63    6 × 42 = 252
  4. 4
    Simplify
    63/252 = 1/4

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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