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Add 28/35 and 54/72

28/35 + 54/72 is 31/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 72 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 35 × 72 = 2520,
    28/35 = 28 × 72/35 × 72 = 2016/2520
  3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
    54/72 = 54 × 35/72 × 35 = 1890/2520
  4. Add the two like fractions:
    2016/2520 + 1890/2520 = 2016 + 1890/2520 = 3906/2520
  5. 3906/2520 simplified gives 31/20
  6. So, 28/35 + 54/72 = 31/20
    In mixed form: 111/20

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