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Add 10/12 and 21/20

1st number: 10/12, 2nd number: 1 1/20

10/12 + 21/20 is 113/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    10/12 = 10 × 5/12 × 5 = 50/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    21/20 = 21 × 3/20 × 3 = 63/60
  4. Add the two like fractions:
    50/60 + 63/60 = 50 + 63/60 = 113/60
  5. So, 10/12 + 21/20 = 113/60
    In mixed form: 153/60

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