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Add 1/42 and 21/8

1st number: 1/42, 2nd number: 2 5/8

1/42 + 21/8 is 445/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 8 is 168
  2. For the 1st fraction, since 42 × 4 = 168,
    1/42 = 1 × 4/42 × 4 = 4/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    21/8 = 21 × 21/8 × 21 = 441/168
  4. Add the two fractions:
    4/168 + 441/168 = 4 + 441/168 = 445/168
  5. So, 1/42 + 21/8 = 445/168
    In mixed form: 2109/168

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