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Add 21/4 and 21/42

1st number: 5 1/4, 2nd number: 21/42

21/4 + 21/42 is 23/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 42 is 84
  2. For the 1st fraction, since 4 × 21 = 84,
    21/4 = 21 × 21/4 × 21 = 441/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    21/42 = 21 × 2/42 × 2 = 42/84
  4. Add the two fractions:
    441/84 + 42/84 = 441 + 42/84 = 483/84
  5. After reducing the fraction, the answer is 23/4
  6. In mixed form: 53/4

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