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Add 2/21 and 84/20

1st number: 2/21, 2nd number: 4 4/20

2/21 + 84/20 is 451/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 20 is 420
  2. For the 1st fraction, since 21 × 20 = 420,
    2/21 = 2 × 20/21 × 20 = 40/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    84/20 = 84 × 21/20 × 21 = 1764/420
  4. Add the two fractions:
    40/420 + 1764/420 = 40 + 1764/420 = 1804/420
  5. After reducing the fraction, the answer is 451/105
  6. In mixed form: 431/105

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