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Add 84/90 and 8/72

84/90 + 8/72 is 47/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 90 × 4 = 360,
    84/90 = 84 × 4/90 × 4 = 336/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    8/72 = 8 × 5/72 × 5 = 40/360
  4. Add the two like fractions:
    336/360 + 40/360 = 336 + 40/360 = 376/360
  5. 376/360 simplified gives 47/45
  6. So, 84/90 + 8/72 = 47/45
    In mixed form: 12/45

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