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Add 21/49 and 45/56

21/49 + 45/56 is 69/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 56 is 392

    Next, find the equivalent fraction of both fractional numbers with denominator 392
  2. For the 1st fraction, since 49 × 8 = 392,
    21/49 = 21 × 8/49 × 8 = 168/392
  3. Likewise, for the 2nd fraction, since 56 × 7 = 392,
    45/56 = 45 × 7/56 × 7 = 315/392
  4. Add the two like fractions:
    168/392 + 315/392 = 168 + 315/392 = 483/392
  5. 483/392 simplified gives 69/56
  6. So, 21/49 + 45/56 = 69/56
    In mixed form: 113/56

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