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Add 20/45 and 84/63

1st number: 20/45, 2nd number: 1 21/63

20/45 + 84/63 is 16/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 63 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 45 × 7 = 315,
    20/45 = 20 × 7/45 × 7 = 140/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    84/63 = 84 × 5/63 × 5 = 420/315
  4. Add the two like fractions:
    140/315 + 420/315 = 140 + 420/315 = 560/315
  5. 560/315 simplified gives 16/9
  6. So, 20/45 + 84/63 = 16/9
    In mixed form: 17/9

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