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Add 21/84 and 45/4

1st number: 21/84, 2nd number: 11 1/4

21/84 + 45/4 is 23/2.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 84 × 1 = 84,
    21/84 = 21 × 1/84 × 1 = 21/84
  3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
    45/4 = 45 × 21/4 × 21 = 945/84
  4. Add the two like fractions:
    21/84 + 945/84 = 21 + 945/84 = 966/84
  5. 966/84 simplified gives 23/2
  6. So, 21/84 + 45/4 = 23/2
    In mixed form: 111/2

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