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Add 27/21 and 18/63

1st number: 1 6/21, 2nd number: 18/63

27/21 + 18/63 is 11/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 63 is 63
  2. For the 1st fraction, since 21 × 3 = 63,
    27/21 = 27 × 3/21 × 3 = 81/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    18/63 = 18 × 1/63 × 1 = 18/63
  4. Add the two fractions:
    81/63 + 18/63 = 81 + 18/63 = 99/63
  5. 99/63 simplified gives 11/7
  6. So, 27/21 + 18/63 = 11/7
    In mixed form: 14/7

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