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Add 54/15 and 30/7

1st number: 3 9/15, 2nd number: 4 2/7

54/15 + 30/7 is 276/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 7 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 15 × 7 = 105,
    54/15 = 54 × 7/15 × 7 = 378/105
  3. Likewise, for the 2nd fraction, since 7 × 15 = 105,
    30/7 = 30 × 15/7 × 15 = 450/105
  4. Add the two like fractions:
    378/105 + 450/105 = 378 + 450/105 = 828/105
  5. 828/105 simplified gives 276/35
  6. So, 54/15 + 30/7 = 276/35
    In mixed form: 731/35

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