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Add 28/21 and 3/60

1st number: 1 7/21, 2nd number: 3/60

28/21 + 3/60 is 83/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 60 is 420
  2. For the 1st fraction, since 21 × 20 = 420,
    28/21 = 28 × 20/21 × 20 = 560/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    3/60 = 3 × 7/60 × 7 = 21/420
  4. Add the two fractions:
    560/420 + 21/420 = 560 + 21/420 = 581/420
  5. 581/420 simplified gives 83/60
  6. So, 28/21 + 3/60 = 83/60
    In mixed form: 123/60

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