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Add 12/40 and 90/80

1st number: 12/40, 2nd number: 1 10/80

12/40 + 90/80 is 57/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 40 × 2 = 80,
    12/40 = 12 × 2/40 × 2 = 24/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    90/80 = 90 × 1/80 × 1 = 90/80
  4. Add the two like fractions:
    24/80 + 90/80 = 24 + 90/80 = 114/80
  5. 114/80 simplified gives 57/40
  6. So, 12/40 + 90/80 = 57/40
    In mixed form: 117/40

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