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Add 1/40 and 42/30

1st number: 1/40, 2nd number: 1 12/30

1/40 + 42/30 is 57/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 30 is 120
  2. For the 1st fraction, since 40 × 3 = 120,
    1/40 = 1 × 3/40 × 3 = 3/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    42/30 = 42 × 4/30 × 4 = 168/120
  4. Add the two fractions:
    3/120 + 168/120 = 3 + 168/120 = 171/120
  5. 171/120 simplified gives 57/40
  6. So, 1/40 + 42/30 = 57/40
    In mixed form: 117/40

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