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Add 30/9 and 21/20

1st number: 3 3/9, 2nd number: 1 1/20

30/9 + 21/20 is 263/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 20 is 180
  2. For the 1st fraction, since 9 × 20 = 180,
    30/9 = 30 × 20/9 × 20 = 600/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    21/20 = 21 × 9/20 × 9 = 189/180
  4. Add the two fractions:
    600/180 + 189/180 = 600 + 189/180 = 789/180
  5. After reducing the fraction, the answer is 263/60
  6. In mixed form: 423/60

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