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Add 35/72 and 80/90

35/72 + 80/90 is 11/8.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    35/72 = 35 × 5/72 × 5 = 175/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    80/90 = 80 × 4/90 × 4 = 320/360
  4. Add the two like fractions:
    175/360 + 320/360 = 175 + 320/360 = 495/360
  5. 495/360 simplified gives 11/8
  6. So, 35/72 + 80/90 = 11/8
    In mixed form: 13/8

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