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Add 54/21 and 30/63

1st number: 2 12/21, 2nd number: 30/63

54/21 + 30/63 is 64/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 63 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 21 × 3 = 63,
    54/21 = 54 × 3/21 × 3 = 162/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    30/63 = 30 × 1/63 × 1 = 30/63
  4. Add the two like fractions:
    162/63 + 30/63 = 162 + 30/63 = 192/63
  5. 192/63 simplified gives 64/21
  6. So, 54/21 + 30/63 = 64/21
    In mixed form: 31/21

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