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Add 9/21 and 1/4

9/21 + 1/4 is 19/28.

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,
    9/21 = 9 × 4/21 × 4 = 36/84
  3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
    1/4 = 1 × 21/4 × 21 = 21/84
  4. Add the two like fractions:
    36/84 + 21/84 = 36 + 21/84 = 57/84
  5. 57/84 simplified gives 19/28
  6. So, 9/21 + 1/4 = 19/28

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