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Add 15/24 and 7/20

15/24 + 7/20 is 39/40.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 24 × 5 = 120,
    15/24 = 15 × 5/24 × 5 = 75/120
  3. Likewise, for the 2nd fraction, since 20 × 6 = 120,
    7/20 = 7 × 6/20 × 6 = 42/120
  4. Add the two like fractions:
    75/120 + 42/120 = 75 + 42/120 = 117/120
  5. 117/120 simplified gives 39/40
  6. So, 15/24 + 7/20 = 39/40

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