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Add 28/45 and 42/72

28/45 + 42/72 is 217/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 45 × 8 = 360,
    28/45 = 28 × 8/45 × 8 = 224/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    42/72 = 42 × 5/72 × 5 = 210/360
  4. Add the two like fractions:
    224/360 + 210/360 = 224 + 210/360 = 434/360
  5. 434/360 simplified gives 217/180
  6. So, 28/45 + 42/72 = 217/180
    In mixed form: 137/180

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