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Add 12/5 and 72/90

1st number: 2 2/5, 2nd number: 72/90

12/5 + 72/90 is 16/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 5 × 18 = 90,
    12/5 = 12 × 18/5 × 18 = 216/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    72/90 = 72 × 1/90 × 1 = 72/90
  4. Add the two like fractions:
    216/90 + 72/90 = 216 + 72/90 = 288/90
  5. 288/90 simplified gives 16/5
  6. So, 12/5 + 72/90 = 16/5
    In mixed form: 31/5

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