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Add 21/10 and 3/84

1st number: 2 1/10, 2nd number: 3/84

21/10 + 3/84 is 299/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 10 × 42 = 420,
    21/10 = 21 × 42/10 × 42 = 882/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    3/84 = 3 × 5/84 × 5 = 15/420
  4. Add the two like fractions:
    882/420 + 15/420 = 882 + 15/420 = 897/420
  5. 897/420 simplified gives 299/140
  6. So, 21/10 + 3/84 = 299/140
    In mixed form: 219/140

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