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Add 3/40 and 54/45

1st number: 3/40, 2nd number: 1 9/45

3/40 + 54/45 is 51/40.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    3/40 = 3 × 9/40 × 9 = 27/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    54/45 = 54 × 8/45 × 8 = 432/360
  4. Add the two like fractions:
    27/360 + 432/360 = 27 + 432/360 = 459/360
  5. 459/360 simplified gives 51/40
  6. So, 3/40 + 54/45 = 51/40
    In mixed form: 111/40

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