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Add 27/36 and 21/20

1st number: 27/36, 2nd number: 1 1/20

27/36 + 21/20 is 9/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 36 × 5 = 180,
    27/36 = 27 × 5/36 × 5 = 135/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    21/20 = 21 × 9/20 × 9 = 189/180
  4. Add the two like fractions:
    135/180 + 189/180 = 135 + 189/180 = 324/180
  5. 324/180 simplified gives 9/5
  6. So, 27/36 + 21/20 = 9/5
    In mixed form: 14/5

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