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Add 72/30 and 9/7

1st number: 2 12/30, 2nd number: 1 2/7

72/30 + 9/7 is 129/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 7 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    72/30 = 72 × 7/30 × 7 = 504/210
  3. Likewise, for the 2nd fraction, since 7 × 30 = 210,
    9/7 = 9 × 30/7 × 30 = 270/210
  4. Add the two like fractions:
    504/210 + 270/210 = 504 + 270/210 = 774/210
  5. 774/210 simplified gives 129/35
  6. So, 72/30 + 9/7 = 129/35
    In mixed form: 324/35

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