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Add 12/40 and 9/7

1st number: 12/40, 2nd number: 1 2/7

12/40 + 9/7 is 111/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 7 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    12/40 = 12 × 7/40 × 7 = 84/280
  3. Likewise, for the 2nd fraction, since 7 × 40 = 280,
    9/7 = 9 × 40/7 × 40 = 360/280
  4. Add the two like fractions:
    84/280 + 360/280 = 84 + 360/280 = 444/280
  5. 444/280 simplified gives 111/70
  6. So, 12/40 + 9/7 = 111/70
    In mixed form: 141/70

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