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Add 21/12 and 63/10

1st number: 1 9/12, 2nd number: 6 3/10

21/12 + 63/10 is 161/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 10 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    21/12 = 21 × 5/12 × 5 = 105/60
  3. Likewise, for the 2nd fraction, since 10 × 6 = 60,
    63/10 = 63 × 6/10 × 6 = 378/60
  4. Add the two like fractions:
    105/60 + 378/60 = 105 + 378/60 = 483/60
  5. 483/60 simplified gives 161/20
  6. So, 21/12 + 63/10 = 161/20
    In mixed form: 81/20

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