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Add 56/84 and 54/72

56/84 + 54/72 is 17/12.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 84 × 6 = 504,
    56/84 = 56 × 6/84 × 6 = 336/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    54/72 = 54 × 7/72 × 7 = 378/504
  4. Add the two like fractions:
    336/504 + 378/504 = 336 + 378/504 = 714/504
  5. 714/504 simplified gives 17/12
  6. So, 56/84 + 54/72 = 17/12
    In mixed form: 15/12

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