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Add 72/90 and 81/18

1st number: 72/90, 2nd number: 4 9/18

72/90 + 81/18 is 53/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 18 is 90
  2. For the 1st fraction, since 90 × 1 = 90,
    72/90 = 72 × 1/90 × 1 = 72/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    81/18 = 81 × 5/18 × 5 = 405/90
  4. Add the two fractions:
    72/90 + 405/90 = 72 + 405/90 = 477/90
  5. 477/90 simplified gives 53/10
  6. So, 72/90 + 81/18 = 53/10
    In mixed form: 53/10

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