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Add 28/40 and 64/5

1st number: 28/40, 2nd number: 12 4/5

28/40 + 64/5 is 27/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 5 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 40 × 1 = 40,
    28/40 = 28 × 1/40 × 1 = 28/40
  3. Likewise, for the 2nd fraction, since 5 × 8 = 40,
    64/5 = 64 × 8/5 × 8 = 512/40
  4. Add the two like fractions:
    28/40 + 512/40 = 28 + 512/40 = 540/40
  5. 540/40 simplified gives 27/2
  6. So, 28/40 + 64/5 = 27/2
    In mixed form: 131/2

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