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Add 27/40 and 25/28

27/40 + 25/28 is 439/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 28 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    27/40 = 27 × 7/40 × 7 = 189/280
  3. Likewise, for the 2nd fraction, since 28 × 10 = 280,
    25/28 = 25 × 10/28 × 10 = 250/280
  4. Add the two like fractions:
    189/280 + 250/280 = 189 + 250/280 = 439/280
  5. So, 27/40 + 25/28 = 439/280
    In mixed form: 1159/280

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