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Add 72/80 and 9/30

72/80 + 9/30 is 6/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 30 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    72/80 = 72 × 3/80 × 3 = 216/240
  3. Likewise, for the 2nd fraction, since 30 × 8 = 240,
    9/30 = 9 × 8/30 × 8 = 72/240
  4. Add the two like fractions:
    216/240 + 72/240 = 216 + 72/240 = 288/240
  5. 288/240 simplified gives 6/5
  6. So, 72/80 + 9/30 = 6/5
    In mixed form: 11/5

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