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Add 15/20 and 12/24

15/20 + 12/24 is 5/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 24 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 20 × 6 = 120,
    15/20 = 15 × 6/20 × 6 = 90/120
  3. Likewise, for the 2nd fraction, since 24 × 5 = 120,
    12/24 = 12 × 5/24 × 5 = 60/120
  4. Add the two like fractions:
    90/120 + 60/120 = 90 + 60/120 = 150/120
  5. 150/120 simplified gives 5/4
  6. So, 15/20 + 12/24 = 5/4
    In mixed form: 11/4

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