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Add 72/45 and 45/40

1st number: 1 27/45, 2nd number: 1 5/40

72/45 + 45/40 is 109/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 45 × 8 = 360,
    72/45 = 72 × 8/45 × 8 = 576/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    45/40 = 45 × 9/40 × 9 = 405/360
  4. Add the two like fractions:
    576/360 + 405/360 = 576 + 405/360 = 981/360
  5. 981/360 simplified gives 109/40
  6. So, 72/45 + 45/40 = 109/40
    In mixed form: 229/40

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