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Add 12/60 and 30/21

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

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

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 21 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 60 × 7 = 420,
    12/60 = 12 × 7/60 × 7 = 84/420
  3. Likewise, for the 2nd fraction, since 21 × 20 = 420,
    30/21 = 30 × 20/21 × 20 = 600/420
  4. Add the two like fractions:
    84/420 + 600/420 = 84 + 600/420 = 684/420
  5. 684/420 simplified gives 57/35
  6. So, 12/60 + 30/21 = 57/35
    In mixed form: 122/35

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