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Add 21/20 and 25/84

1st number: 1 1/20, 2nd number: 25/84

21/20 + 25/84 is 283/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    21/20 = 21 × 21/20 × 21 = 441/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    25/84 = 25 × 5/84 × 5 = 125/420
  4. Add the two like fractions:
    441/420 + 125/420 = 441 + 125/420 = 566/420
  5. 566/420 simplified gives 283/210
  6. So, 21/20 + 25/84 = 283/210
    In mixed form: 173/210

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