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Add 1/21 and 18/4

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

1/21 + 18/4 is 191/42.

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,
    1/21 = 1 × 4/21 × 4 = 4/84
  3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
    18/4 = 18 × 21/4 × 21 = 378/84
  4. Add the two like fractions:
    4/84 + 378/84 = 4 + 378/84 = 382/84
  5. 382/84 simplified gives 191/42
  6. So, 1/21 + 18/4 = 191/42
    In mixed form: 423/42

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