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Add 20/15 and 84/63

1st number: 1 5/15, 2nd number: 1 21/63

20/15 + 84/63 is 8/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 63 is 315
  2. For the 1st fraction, since 15 × 21 = 315,
    20/15 = 20 × 21/15 × 21 = 420/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    84/63 = 84 × 5/63 × 5 = 420/315
  4. Add the two fractions:
    420/315 + 420/315 = 420 + 420/315 = 840/315
  5. 840/315 simplified gives 8/3
  6. So, 20/15 + 84/63 = 8/3
    In mixed form: 22/3

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