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Add 28/8 and 42/10

1st number: 3 4/8, 2nd number: 4 2/10

28/8 + 42/10 is 77/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 10 is 40
  2. For the 1st fraction, since 8 × 5 = 40,
    28/8 = 28 × 5/8 × 5 = 140/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    42/10 = 42 × 4/10 × 4 = 168/40
  4. Add the two fractions:
    140/40 + 168/40 = 140 + 168/40 = 308/40
  5. After reducing the fraction, the answer is 77/10
  6. In mixed form: 77/10

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