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Add 30/21 and 12/60

1st number: 1 9/21, 2nd number: 12/60

30/21 + 12/60 is 57/35.

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,
    30/21 = 30 × 20/21 × 20 = 600/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    12/60 = 12 × 7/60 × 7 = 84/420
  4. Add the two fractions:
    600/420 + 84/420 = 600 + 84/420 = 684/420
  5. 684/420 simplified gives 57/35
  6. So, 30/21 + 12/60 = 57/35
    In mixed form: 122/35

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