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Add 21/84 and 63/30

1st number: 21/84, 2nd number: 2 3/30

21/84 + 63/30 is 47/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 30 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    21/84 = 21 × 5/84 × 5 = 105/420
  3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
    63/30 = 63 × 14/30 × 14 = 882/420
  4. Add the two like fractions:
    105/420 + 882/420 = 105 + 882/420 = 987/420
  5. 987/420 simplified gives 47/20
  6. So, 21/84 + 63/30 = 47/20
    In mixed form: 27/20

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