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Add 72/4 and 35/90

1st number: 18 0/4, 2nd number: 35/90

72/4 + 35/90 is 331/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 4 × 45 = 180,
    72/4 = 72 × 45/4 × 45 = 3240/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    35/90 = 35 × 2/90 × 2 = 70/180
  4. Add the two like fractions:
    3240/180 + 70/180 = 3240 + 70/180 = 3310/180
  5. 3310/180 simplified gives 331/18
  6. So, 72/4 + 35/90 = 331/18
    In mixed form: 187/18

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