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Add 28/10 and 18/42

1st number: 2 8/10, 2nd number: 18/42

28/10 + 18/42 is 113/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 42 is 210
  2. For the 1st fraction, since 10 × 21 = 210,
    28/10 = 28 × 21/10 × 21 = 588/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    18/42 = 18 × 5/42 × 5 = 90/210
  4. Add the two fractions:
    588/210 + 90/210 = 588 + 90/210 = 678/210
  5. After reducing the fraction, the answer is 113/35
  6. In mixed form: 38/35

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