81/2 divided by 42/4

81/2 ÷ 42/4
=
27 7
Mixed Number: 3 6/7
Decimal: 3.857143
Percentage: 385.71%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    42/4 becomes 4/42
  2. 2
    Multiply by reciprocal
    81/2 × 4/42
  3. 3
    Multiply numerators & denominators
    81 × 4 = 324    2 × 42 = 84
  4. 4
    Simplify
    324/84 = 27/7

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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