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Add 20/15 and 18/56

1st number: 1 5/15, 2nd number: 18/56

20/15 + 18/56 is 139/84.

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,
    20/15 = 20 × 56/15 × 56 = 1120/840
  3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
    18/56 = 18 × 15/56 × 15 = 270/840
  4. Add the two like fractions:
    1120/840 + 270/840 = 1120 + 270/840 = 1390/840
  5. 1390/840 simplified gives 139/84
  6. So, 20/15 + 18/56 = 139/84
    In mixed form: 155/84

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