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Add 56/15 and 21/56

1st number: 3 11/15, 2nd number: 21/56

56/15 + 21/56 is 493/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 56 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 15 × 56 = 840,
    56/15 = 56 × 56/15 × 56 = 3136/840
  3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
    21/56 = 21 × 15/56 × 15 = 315/840
  4. Add the two like fractions:
    3136/840 + 315/840 = 3136 + 315/840 = 3451/840
  5. 3451/840 simplified gives 493/120
  6. So, 56/15 + 21/56 = 493/120
    In mixed form: 413/120

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