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Add 21/20 and 30/36

1st number: 1 1/20, 2nd number: 30/36

21/20 + 30/36 is 113/60.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    21/20 = 21 × 9/20 × 9 = 189/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    30/36 = 30 × 5/36 × 5 = 150/180
  4. Add the two like fractions:
    189/180 + 150/180 = 189 + 150/180 = 339/180
  5. 339/180 simplified gives 113/60
  6. So, 21/20 + 30/36 = 113/60
    In mixed form: 153/60

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