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Add 12/60 and 90/84

1st number: 12/60, 2nd number: 1 6/84

12/60 + 90/84 is 89/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 84 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 84 × 5 = 420,
    90/84 = 90 × 5/84 × 5 = 450/420
  4. Add the two like fractions:
    84/420 + 450/420 = 84 + 450/420 = 534/420
  5. 534/420 simplified gives 89/70
  6. So, 12/60 + 90/84 = 89/70
    In mixed form: 119/70

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