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Add 28/72 and 4/5

28/72 + 4/5 is 107/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 5 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    28/72 = 28 × 5/72 × 5 = 140/360
  3. Likewise, for the 2nd fraction, since 5 × 72 = 360,
    4/5 = 4 × 72/5 × 72 = 288/360
  4. Add the two like fractions:
    140/360 + 288/360 = 140 + 288/360 = 428/360
  5. 428/360 simplified gives 107/90
  6. So, 28/72 + 4/5 = 107/90
    In mixed form: 117/90

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