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Add 18/14 and 54/20

1st number: 1 4/14, 2nd number: 2 14/20

18/14 + 54/20 is 279/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 14 × 10 = 140,
    18/14 = 18 × 10/14 × 10 = 180/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    54/20 = 54 × 7/20 × 7 = 378/140
  4. Add the two like fractions:
    180/140 + 378/140 = 180 + 378/140 = 558/140
  5. 558/140 simplified gives 279/70
  6. So, 18/14 + 54/20 = 279/70
    In mixed form: 369/70

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