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Add 30/15 and 21/24

1st number: 2 0/15, 2nd number: 21/24

30/15 + 21/24 is 23/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 24 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 15 × 8 = 120,
    30/15 = 30 × 8/15 × 8 = 240/120
  3. Likewise, for the 2nd fraction, since 24 × 5 = 120,
    21/24 = 21 × 5/24 × 5 = 105/120
  4. Add the two like fractions:
    240/120 + 105/120 = 240 + 105/120 = 345/120
  5. 345/120 simplified gives 23/8
  6. So, 30/15 + 21/24 = 23/8
    In mixed form: 27/8

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