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Add 54/63 and 21/56

54/63 + 21/56 is 69/56.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 63 × 8 = 504,
    54/63 = 54 × 8/63 × 8 = 432/504
  3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
    21/56 = 21 × 9/56 × 9 = 189/504
  4. Add the two like fractions:
    432/504 + 189/504 = 432 + 189/504 = 621/504
  5. 621/504 simplified gives 69/56
  6. So, 54/63 + 21/56 = 69/56
    In mixed form: 113/56

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