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Add 81/56 and 3/20

1st number: 1 25/56, 2nd number: 3/20

81/56 + 3/20 is 447/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 20 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 56 × 5 = 280,
    81/56 = 81 × 5/56 × 5 = 405/280
  3. Likewise, for the 2nd fraction, since 20 × 14 = 280,
    3/20 = 3 × 14/20 × 14 = 42/280
  4. Add the two like fractions:
    405/280 + 42/280 = 405 + 42/280 = 447/280
  5. So, 81/56 + 3/20 = 447/280
    In mixed form: 1167/280

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