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Add 42/15 and 20/56

1st number: 2 12/15, 2nd number: 20/56

42/15 + 20/56 is 221/70.

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,
    42/15 = 42 × 56/15 × 56 = 2352/840
  3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
    20/56 = 20 × 15/56 × 15 = 300/840
  4. Add the two like fractions:
    2352/840 + 300/840 = 2352 + 300/840 = 2652/840
  5. 2652/840 simplified gives 221/70
  6. So, 42/15 + 20/56 = 221/70
    In mixed form: 311/70

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