21/2 divided by 78/3

21/2 ÷ 78/3
=
21 52
Decimal: 0.403846
Percentage: 40.38%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    78/3 becomes 3/78
  2. 2
    Multiply by reciprocal
    21/2 × 3/78
  3. 3
    Multiply numerators & denominators
    21 × 3 = 63    2 × 78 = 156
  4. 4
    Simplify
    63/156 = 21/52

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