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Add 30/40 and 80/7

1st number: 30/40, 2nd number: 11 3/7

30/40 + 80/7 is 341/28.

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,
    30/40 = 30 × 7/40 × 7 = 210/280
  3. Likewise, for the 2nd fraction, since 7 × 40 = 280,
    80/7 = 80 × 40/7 × 40 = 3200/280
  4. Add the two like fractions:
    210/280 + 3200/280 = 210 + 3200/280 = 3410/280
  5. 3410/280 simplified gives 341/28
  6. So, 30/40 + 80/7 = 341/28
    In mixed form: 125/28

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