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Add 5/21 and 3/4

5/21 + 3/4 is 83/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 4 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 21 × 4 = 84,
    5/21 = 5 × 4/21 × 4 = 20/84
  3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
    3/4 = 3 × 21/4 × 21 = 63/84
  4. Add the two like fractions:
    20/84 + 63/84 = 20 + 63/84 = 83/84
  5. So, 5/21 + 3/4 = 83/84

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