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Add 15/20 and 5/8

15/20 + 5/8 is 11/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 20 × 2 = 40,
    15/20 = 15 × 2/20 × 2 = 30/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    5/8 = 5 × 5/8 × 5 = 25/40
  4. Add the two like fractions:
    30/40 + 25/40 = 30 + 25/40 = 55/40
  5. 55/40 simplified gives 11/8
  6. So, 15/20 + 5/8 = 11/8
    In mixed form: 13/8

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