129/4 divided by 172/4

129/4 ÷ 172/4
=
3 4
Decimal: 0.75
Percentage: 75%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    172/4 becomes 4/172
  2. 2
    Multiply by reciprocal
    129/4 × 4/172
  3. 3
    Multiply numerators & denominators
    129 × 4 = 516    4 × 172 = 688
  4. 4
    Simplify
    516/688 = 3/4

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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