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Add 21/12 and 5/75

1st number: 1 9/12, 2nd number: 5/75

21/12 + 5/75 is 109/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 75 is 300

    Next, find the equivalent fraction of both fractional numbers with denominator 300
  2. For the 1st fraction, since 12 × 25 = 300,
    21/12 = 21 × 25/12 × 25 = 525/300
  3. Likewise, for the 2nd fraction, since 75 × 4 = 300,
    5/75 = 5 × 4/75 × 4 = 20/300
  4. Add the two like fractions:
    525/300 + 20/300 = 525 + 20/300 = 545/300
  5. 545/300 simplified gives 109/60
  6. So, 21/12 + 5/75 = 109/60
    In mixed form: 149/60

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