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Add 84/63 and 30/84

1st number: 1 21/63, 2nd number: 30/84

84/63 + 30/84 is 71/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 84 is 252
  2. For the 1st fraction, since 63 × 4 = 252,
    84/63 = 84 × 4/63 × 4 = 336/252
  3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
    30/84 = 30 × 3/84 × 3 = 90/252
  4. Add the two fractions:
    336/252 + 90/252 = 336 + 90/252 = 426/252
  5. 426/252 simplified gives 71/42
  6. So, 84/63 + 30/84 = 71/42
    In mixed form: 129/42

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