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Add 42/40 and 27/15

1st number: 1 2/40, 2nd number: 1 12/15

42/40 + 27/15 is 57/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 15 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 40 × 3 = 120,
    42/40 = 42 × 3/40 × 3 = 126/120
  3. Likewise, for the 2nd fraction, since 15 × 8 = 120,
    27/15 = 27 × 8/15 × 8 = 216/120
  4. Add the two like fractions:
    126/120 + 216/120 = 126 + 216/120 = 342/120
  5. 342/120 simplified gives 57/20
  6. So, 42/40 + 27/15 = 57/20
    In mixed form: 217/20

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