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Add 18/72 and 5/90

18/72 + 5/90 is 11/36.

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,
    18/72 = 18 × 5/72 × 5 = 90/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    5/90 = 5 × 4/90 × 4 = 20/360
  4. Add the two like fractions:
    90/360 + 20/360 = 90 + 20/360 = 110/360
  5. 110/360 simplified gives 11/36
  6. So, 18/72 + 5/90 = 11/36

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