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Add 18/20 and 42/8

1st number: 18/20, 2nd number: 5 2/8

18/20 + 42/8 is 123/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 8 is 40
  2. For the 1st fraction, since 20 × 2 = 40,
    18/20 = 18 × 2/20 × 2 = 36/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    42/8 = 42 × 5/8 × 5 = 210/40
  4. Add the two fractions:
    36/40 + 210/40 = 36 + 210/40 = 246/40
  5. After reducing the fraction, the answer is 123/20
  6. In mixed form: 63/20

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