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Add 3/56 and 21/30

3/56 + 21/30 is 211/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 30 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 56 × 15 = 840,
    3/56 = 3 × 15/56 × 15 = 45/840
  3. Likewise, for the 2nd fraction, since 30 × 28 = 840,
    21/30 = 21 × 28/30 × 28 = 588/840
  4. Add the two like fractions:
    45/840 + 588/840 = 45 + 588/840 = 633/840
  5. 633/840 simplified gives 211/280
  6. So, 3/56 + 21/30 = 211/280

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