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Add 30/10 and 21/12

1st number: 3 0/10, 2nd number: 1 9/12

30/10 + 21/12 is 19/4.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 10 × 6 = 60,
    30/10 = 30 × 6/10 × 6 = 180/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    21/12 = 21 × 5/12 × 5 = 105/60
  4. Add the two like fractions:
    180/60 + 105/60 = 180 + 105/60 = 285/60
  5. 285/60 simplified gives 19/4
  6. So, 30/10 + 21/12 = 19/4
    In mixed form: 43/4

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