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Add 30/75 and 21/20

1st number: 30/75, 2nd number: 1 1/20

30/75 + 21/20 is 29/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 20 is 300

    Next, find the equivalent fraction of both fractional numbers with denominator 300
  2. For the 1st fraction, since 75 × 4 = 300,
    30/75 = 30 × 4/75 × 4 = 120/300
  3. Likewise, for the 2nd fraction, since 20 × 15 = 300,
    21/20 = 21 × 15/20 × 15 = 315/300
  4. Add the two like fractions:
    120/300 + 315/300 = 120 + 315/300 = 435/300
  5. 435/300 simplified gives 29/20
  6. So, 30/75 + 21/20 = 29/20
    In mixed form: 19/20

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