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Add 1/30 and 42/40

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

1/30 + 42/40 is 13/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 40 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 30 × 4 = 120,
    1/30 = 1 × 4/30 × 4 = 4/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    42/40 = 42 × 3/40 × 3 = 126/120
  4. Add the two like fractions:
    4/120 + 126/120 = 4 + 126/120 = 130/120
  5. 130/120 simplified gives 13/12
  6. So, 1/30 + 42/40 = 13/12
    In mixed form: 11/12

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