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Add 21/56 and 54/80

21/56 + 54/80 is 21/20.

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,
    21/56 = 21 × 10/56 × 10 = 210/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    54/80 = 54 × 7/80 × 7 = 378/560
  4. Add the two like fractions:
    210/560 + 378/560 = 210 + 378/560 = 588/560
  5. 588/560 simplified gives 21/20
  6. So, 21/56 + 54/80 = 21/20
    In mixed form: 11/20

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