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Add 72/40 and 3/9

1st number: 1 32/40, 2nd number: 3/9

72/40 + 3/9 is 32/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 9 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    72/40 = 72 × 9/40 × 9 = 648/360
  3. Likewise, for the 2nd fraction, since 9 × 40 = 360,
    3/9 = 3 × 40/9 × 40 = 120/360
  4. Add the two like fractions:
    648/360 + 120/360 = 648 + 120/360 = 768/360
  5. 768/360 simplified gives 32/15
  6. So, 72/40 + 3/9 = 32/15
    In mixed form: 22/15

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