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Add 72/4 and 2/21

1st number: 18 0/4, 2nd number: 2/21

72/4 + 2/21 is 380/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 21 is 84
  2. For the 1st fraction, since 4 × 21 = 84,
    72/4 = 72 × 21/4 × 21 = 1512/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    2/21 = 2 × 4/21 × 4 = 8/84
  4. Add the two fractions:
    1512/84 + 8/84 = 1512 + 8/84 = 1520/84
  5. After reducing the fraction, the answer is 380/21
  6. In mixed form: 182/21

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