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Add 72/20 and 35/9

1st number: 3 12/20, 2nd number: 3 8/9

72/20 + 35/9 is 337/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    72/20 = 72 × 9/20 × 9 = 648/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    35/9 = 35 × 20/9 × 20 = 700/180
  4. Add the two like fractions:
    648/180 + 700/180 = 648 + 700/180 = 1348/180
  5. 1348/180 simplified gives 337/45
  6. So, 72/20 + 35/9 = 337/45
    In mixed form: 722/45

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