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Add 72/30 and 45/42

1st number: 2 12/30, 2nd number: 1 3/42

72/30 + 45/42 is 243/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 42 is 210
  2. For the 1st fraction, since 30 × 7 = 210,
    72/30 = 72 × 7/30 × 7 = 504/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    45/42 = 45 × 5/42 × 5 = 225/210
  4. Add the two fractions:
    504/210 + 225/210 = 504 + 225/210 = 729/210
  5. After reducing the fraction, the answer is 243/70
  6. In mixed form: 333/70

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