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Add 72/40 and 4/18

1st number: 1 32/40, 2nd number: 4/18

72/40 + 4/18 is 91/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 18 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 18 × 20 = 360,
    4/18 = 4 × 20/18 × 20 = 80/360
  4. Add the two like fractions:
    648/360 + 80/360 = 648 + 80/360 = 728/360
  5. 728/360 simplified gives 91/45
  6. So, 72/40 + 4/18 = 91/45
    In mixed form: 21/45

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