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Add 30/21 and 75/7

1st number: 1 9/21, 2nd number: 10 5/7

30/21 + 75/7 is 85/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 7 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 21 × 1 = 21,
    30/21 = 30 × 1/21 × 1 = 30/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    75/7 = 75 × 3/7 × 3 = 225/21
  4. Add the two like fractions:
    30/21 + 225/21 = 30 + 225/21 = 255/21
  5. 255/21 simplified gives 85/7
  6. So, 30/21 + 75/7 = 85/7
    In mixed form: 121/7

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