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Add 21/90 and 18/24

21/90 + 18/24 is 59/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 24 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 90 × 4 = 360,
    21/90 = 21 × 4/90 × 4 = 84/360
  3. Likewise, for the 2nd fraction, since 24 × 15 = 360,
    18/24 = 18 × 15/24 × 15 = 270/360
  4. Add the two like fractions:
    84/360 + 270/360 = 84 + 270/360 = 354/360
  5. 354/360 simplified gives 59/60
  6. So, 21/90 + 18/24 = 59/60

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