12/3 divided by 42/4

12/3 ÷ 42/4
=
8 21
Decimal: 0.380952
Percentage: 38.1%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    42/4 becomes 4/42
  2. 2
    Multiply by reciprocal
    12/3 × 4/42
  3. 3
    Multiply numerators & denominators
    12 × 4 = 48    3 × 42 = 126
  4. 4
    Simplify
    48/126 = 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