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Add 2/5 and 80/42

1st number: 2/5, 2nd number: 1 38/42

2/5 + 80/42 is 242/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 5 × 42 = 210,
    2/5 = 2 × 42/5 × 42 = 84/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    80/42 = 80 × 5/42 × 5 = 400/210
  4. Add the two like fractions:
    84/210 + 400/210 = 84 + 400/210 = 484/210
  5. 484/210 simplified gives 242/105
  6. So, 2/5 + 80/42 = 242/105
    In mixed form: 232/105

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