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Add 15/56 and 40/70

15/56 + 40/70 is 47/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 70 is 280
  2. For the 1st fraction, since 56 × 5 = 280,
    15/56 = 15 × 5/56 × 5 = 75/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    40/70 = 40 × 4/70 × 4 = 160/280
  4. Add the two fractions:
    75/280 + 160/280 = 75 + 160/280 = 235/280
  5. After reducing the fraction, the answer is 47/56

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