21/2 divided by 45/4

21/2 ÷ 45/4
=
14 15
Decimal: 0.933333
Percentage: 93.33%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    45/4 becomes 4/45
  2. 2
    Multiply by reciprocal
    21/2 × 4/45
  3. 3
    Multiply numerators & denominators
    21 × 4 = 84    2 × 45 = 90
  4. 4
    Simplify
    84/90 = 14/15

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