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Add 72/90 and 54/18

1st number: 72/90, 2nd number: 3 0/18

72/90 + 54/18 is 19/5.

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,
    54/18 = 54 × 5/18 × 5 = 270/90
  4. Add the two fractions:
    72/90 + 270/90 = 72 + 270/90 = 342/90
  5. 342/90 simplified gives 19/5
  6. So, 72/90 + 54/18 = 19/5
    In mixed form: 34/5

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