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Add 72/84 and 75/63

1st number: 72/84, 2nd number: 1 12/63

72/84 + 75/63 is 43/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 63 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 84 × 3 = 252,
    72/84 = 72 × 3/84 × 3 = 216/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    75/63 = 75 × 4/63 × 4 = 300/252
  4. Add the two like fractions:
    216/252 + 300/252 = 216 + 300/252 = 516/252
  5. 516/252 simplified gives 43/21
  6. So, 72/84 + 75/63 = 43/21
    In mixed form: 21/21

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