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Add 45/56 and 27/80

45/56 + 27/80 is 639/560.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 56 × 10 = 560,
    45/56 = 45 × 10/56 × 10 = 450/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    27/80 = 27 × 7/80 × 7 = 189/560
  4. Add the two like fractions:
    450/560 + 189/560 = 450 + 189/560 = 639/560
  5. So, 45/56 + 27/80 = 639/560
    In mixed form: 179/560

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