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Add 42/10 and 18/28

1st number: 4 2/10, 2nd number: 18/28

42/10 + 18/28 is 339/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 28 is 140
  2. For the 1st fraction, since 10 × 14 = 140,
    42/10 = 42 × 14/10 × 14 = 588/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    18/28 = 18 × 5/28 × 5 = 90/140
  4. Add the two fractions:
    588/140 + 90/140 = 588 + 90/140 = 678/140
  5. After reducing the fraction, the answer is 339/70
  6. In mixed form: 459/70

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