90/3 divided by 121/4

90/3 ÷ 121/4
=
120 121
Decimal: 0.991736
Percentage: 99.17%

Step-by-Step Solution

  1. 1
    Take reciprocal of second fraction
    121/4 becomes 4/121
  2. 2
    Multiply by reciprocal
    90/3 × 4/121
  3. 3
    Multiply numerators & denominators
    90 × 4 = 360    3 × 121 = 363
  4. 4
    Simplify
    360/363 = 120/121

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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