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Add 28/5 and 90/12

1st number: 5 3/5, 2nd number: 7 6/12

28/5 + 90/12 is 131/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 12 is 60
  2. For the 1st fraction, since 5 × 12 = 60,
    28/5 = 28 × 12/5 × 12 = 336/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    90/12 = 90 × 5/12 × 5 = 450/60
  4. Add the two fractions:
    336/60 + 450/60 = 336 + 450/60 = 786/60
  5. After reducing the fraction, the answer is 131/10
  6. In mixed form: 131/10

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