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Add 54/56 and 20/63

54/56 + 20/63 is 323/252.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 63 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 56 × 9 = 504,
    54/56 = 54 × 9/56 × 9 = 486/504
  3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
    20/63 = 20 × 8/63 × 8 = 160/504
  4. Add the two like fractions:
    486/504 + 160/504 = 486 + 160/504 = 646/504
  5. 646/504 simplified gives 323/252
  6. So, 54/56 + 20/63 = 323/252
    In mixed form: 171/252

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