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Add 15/40 and 75/70

1st number: 15/40, 2nd number: 1 5/70

15/40 + 75/70 is 81/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 70 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    15/40 = 15 × 7/40 × 7 = 105/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    75/70 = 75 × 4/70 × 4 = 300/280
  4. Add the two like fractions:
    105/280 + 300/280 = 105 + 300/280 = 405/280
  5. 405/280 simplified gives 81/56
  6. So, 15/40 + 75/70 = 81/56
    In mixed form: 125/56

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