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Add 1/40 and 72/45

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

1/40 + 72/45 is 13/8.

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,
    1/40 = 1 × 9/40 × 9 = 9/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    72/45 = 72 × 8/45 × 8 = 576/360
  4. Add the two like fractions:
    9/360 + 576/360 = 9 + 576/360 = 585/360
  5. 585/360 simplified gives 13/8
  6. So, 1/40 + 72/45 = 13/8
    In mixed form: 15/8

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