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Add 21/20 and 12/30

1st number: 1 1/20, 2nd number: 12/30

21/20 + 12/30 is 29/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 30 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    21/20 = 21 × 3/20 × 3 = 63/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    12/30 = 12 × 2/30 × 2 = 24/60
  4. Add the two like fractions:
    63/60 + 24/60 = 63 + 24/60 = 87/60
  5. 87/60 simplified gives 29/20
  6. So, 21/20 + 12/30 = 29/20
    In mixed form: 19/20

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