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Add 54/80 and 45/56

54/80 + 45/56 is 207/140.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    54/80 = 54 × 7/80 × 7 = 378/560
  3. Likewise, for the 2nd fraction, since 56 × 10 = 560,
    45/56 = 45 × 10/56 × 10 = 450/560
  4. Add the two like fractions:
    378/560 + 450/560 = 378 + 450/560 = 828/560
  5. 828/560 simplified gives 207/140
  6. So, 54/80 + 45/56 = 207/140
    In mixed form: 167/140

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