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Add 72/30 and 20/28

1st number: 2 12/30, 2nd number: 20/28

72/30 + 20/28 is 109/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 28 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 30 × 14 = 420,
    72/30 = 72 × 14/30 × 14 = 1008/420
  3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
    20/28 = 20 × 15/28 × 15 = 300/420
  4. Add the two like fractions:
    1008/420 + 300/420 = 1008 + 300/420 = 1308/420
  5. 1308/420 simplified gives 109/35
  6. So, 72/30 + 20/28 = 109/35
    In mixed form: 34/35

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