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Add 27/15 and 20/40

1st number: 1 12/15, 2nd number: 20/40

27/15 + 20/40 is 23/10.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 15 × 8 = 120,
    27/15 = 27 × 8/15 × 8 = 216/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    20/40 = 20 × 3/40 × 3 = 60/120
  4. Add the two like fractions:
    216/120 + 60/120 = 216 + 60/120 = 276/120
  5. 276/120 simplified gives 23/10
  6. So, 27/15 + 20/40 = 23/10
    In mixed form: 23/10

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