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Add 56/72 and 45/84

56/72 + 45/84 is 331/252.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 84 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    56/72 = 56 × 7/72 × 7 = 392/504
  3. Likewise, for the 2nd fraction, since 84 × 6 = 504,
    45/84 = 45 × 6/84 × 6 = 270/504
  4. Add the two like fractions:
    392/504 + 270/504 = 392 + 270/504 = 662/504
  5. 662/504 simplified gives 331/252
  6. So, 56/72 + 45/84 = 331/252
    In mixed form: 179/252

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