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Add 14/21 and 63/45

1st number: 14/21, 2nd number: 1 18/45

14/21 + 63/45 is 31/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 21 × 15 = 315,
    14/21 = 14 × 15/21 × 15 = 210/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    63/45 = 63 × 7/45 × 7 = 441/315
  4. Add the two like fractions:
    210/315 + 441/315 = 210 + 441/315 = 651/315
  5. 651/315 simplified gives 31/15
  6. So, 14/21 + 63/45 = 31/15
    In mixed form: 21/15

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