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Add 21/30 and 7/56

21/30 + 7/56 is 33/40.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 30 × 28 = 840,
    21/30 = 21 × 28/30 × 28 = 588/840
  3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
    7/56 = 7 × 15/56 × 15 = 105/840
  4. Add the two like fractions:
    588/840 + 105/840 = 588 + 105/840 = 693/840
  5. 693/840 simplified gives 33/40
  6. So, 21/30 + 7/56 = 33/40

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