21/4 divided by 30/2

21/4 ÷ 30/2
=
7 20
Decimal: 0.35
Percentage: 35%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    30/2 becomes 2/30
  2. 2
    Multiply by reciprocal
    21/4 × 2/30
  3. 3
    Multiply numerators & denominators
    21 × 2 = 42    4 × 30 = 120
  4. 4
    Simplify
    42/120 = 7/20

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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