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Add 54/4 and 21/28

1st number: 13 2/4, 2nd number: 21/28

54/4 + 21/28 is 57/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 28 is 28

    Next, find the equivalent fraction of both fractional numbers with denominator 28
  2. For the 1st fraction, since 4 × 7 = 28,
    54/4 = 54 × 7/4 × 7 = 378/28
  3. Likewise, for the 2nd fraction, since 28 × 1 = 28,
    21/28 = 21 × 1/28 × 1 = 21/28
  4. Add the two like fractions:
    378/28 + 21/28 = 378 + 21/28 = 399/28
  5. 399/28 simplified gives 57/4
  6. So, 54/4 + 21/28 = 57/4
    In mixed form: 141/4

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