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Add 90/60 and 12/40

1st number: 1 30/60, 2nd number: 12/40

90/60 + 12/40 is 9/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 40 is 120
  2. For the 1st fraction, since 60 × 2 = 120,
    90/60 = 90 × 2/60 × 2 = 180/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    12/40 = 12 × 3/40 × 3 = 36/120
  4. Add the two fractions:
    180/120 + 36/120 = 180 + 36/120 = 216/120
  5. After reducing the fraction, the answer is 9/5
  6. In mixed form: 14/5

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