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Add 45/4 and 84/21

1st number: 11 1/4, 2nd number: 4 0/21

45/4 + 84/21 is 61/4.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 4 × 21 = 84,
    45/4 = 45 × 21/4 × 21 = 945/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    84/21 = 84 × 4/21 × 4 = 336/84
  4. Add the two like fractions:
    945/84 + 336/84 = 945 + 336/84 = 1281/84
  5. 1281/84 simplified gives 61/4
  6. So, 45/4 + 84/21 = 61/4
    In mixed form: 151/4

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