16/4 divided by 21/2

16/4 ÷ 21/2
=
8 21
Decimal: 0.380952
Percentage: 38.1%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    21/2 becomes 2/21
  2. 2
    Multiply by reciprocal
    16/4 × 2/21
  3. 3
    Multiply numerators & denominators
    16 × 2 = 32    4 × 21 = 84
  4. 4
    Simplify
    32/84 = 8/21

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.

Try Another Calculation