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Add 42/40 and 30/80

1st number: 1 2/40, 2nd number: 30/80

42/40 + 30/80 is 57/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 80 is 80
  2. For the 1st fraction, since 40 × 2 = 80,
    42/40 = 42 × 2/40 × 2 = 84/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    30/80 = 30 × 1/80 × 1 = 30/80
  4. Add the two fractions:
    84/80 + 30/80 = 84 + 30/80 = 114/80
  5. 114/80 simplified gives 57/40
  6. So, 42/40 + 30/80 = 57/40
    In mixed form: 117/40

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