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Add 28/15 and 21/60

1st number: 1 13/15, 2nd number: 21/60

28/15 + 21/60 is 133/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 60 is 60
  2. For the 1st fraction, since 15 × 4 = 60,
    28/15 = 28 × 4/15 × 4 = 112/60
  3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
    21/60 = 21 × 1/60 × 1 = 21/60
  4. Add the two fractions:
    112/60 + 21/60 = 112 + 21/60 = 133/60
  5. So, 28/15 + 21/60 = 133/60
    In mixed form: 213/60

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