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Add 21/36 and 18/30

21/36 + 18/30 is 71/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 30 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 36 × 5 = 180,
    21/36 = 21 × 5/36 × 5 = 105/180
  3. Likewise, for the 2nd fraction, since 30 × 6 = 180,
    18/30 = 18 × 6/30 × 6 = 108/180
  4. Add the two like fractions:
    105/180 + 108/180 = 105 + 108/180 = 213/180
  5. 213/180 simplified gives 71/60
  6. So, 21/36 + 18/30 = 71/60
    In mixed form: 111/60

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