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Add 40/15 and 21/54

1st number: 2 10/15, 2nd number: 21/54

40/15 + 21/54 is 55/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 15 × 18 = 270,
    40/15 = 40 × 18/15 × 18 = 720/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    21/54 = 21 × 5/54 × 5 = 105/270
  4. Add the two like fractions:
    720/270 + 105/270 = 720 + 105/270 = 825/270
  5. 825/270 simplified gives 55/18
  6. So, 40/15 + 21/54 = 55/18
    In mixed form: 31/18

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