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Add 21/63 and 30/56

21/63 + 30/56 is 73/84.

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,
    21/63 = 21 × 8/63 × 8 = 168/504
  3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
    30/56 = 30 × 9/56 × 9 = 270/504
  4. Add the two like fractions:
    168/504 + 270/504 = 168 + 270/504 = 438/504
  5. 438/504 simplified gives 73/84
  6. So, 21/63 + 30/56 = 73/84

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