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Add 18/20 and 42/56

18/20 + 42/56 is 33/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 56 is 280
  2. For the 1st fraction, since 20 × 14 = 280,
    18/20 = 18 × 14/20 × 14 = 252/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    42/56 = 42 × 5/56 × 5 = 210/280
  4. Add the two fractions:
    252/280 + 210/280 = 252 + 210/280 = 462/280
  5. After reducing the fraction, the answer is 33/20
  6. In mixed form: 113/20

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