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Add 42/2 and 21/84

1st number: 21 0/2, 2nd number: 21/84

42/2 + 21/84 is 85/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 84 is 84
  2. For the 1st fraction, since 2 × 42 = 84,
    42/2 = 42 × 42/2 × 42 = 1764/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    21/84 = 21 × 1/84 × 1 = 21/84
  4. Add the two fractions:
    1764/84 + 21/84 = 1764 + 21/84 = 1785/84
  5. After reducing the fraction, the answer is 85/4
  6. In mixed form: 211/4

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