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Add 90/45 and 12/15

1st number: 2 0/45, 2nd number: 12/15

90/45 + 12/15 is 14/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 15 is 45
  2. For the 1st fraction, since 45 × 1 = 45,
    90/45 = 90 × 1/45 × 1 = 90/45
  3. Likewise, for the 2nd fraction, since 15 × 3 = 45,
    12/15 = 12 × 3/15 × 3 = 36/45
  4. Add the two fractions:
    90/45 + 36/45 = 90 + 36/45 = 126/45
  5. 126/45 simplified gives 14/5
  6. So, 90/45 + 12/15 = 14/5
    In mixed form: 24/5

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