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Add 18/80 and 5/28

18/80 + 5/28 is 113/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 28 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    18/80 = 18 × 7/80 × 7 = 126/560
  3. Likewise, for the 2nd fraction, since 28 × 20 = 560,
    5/28 = 5 × 20/28 × 20 = 100/560
  4. Add the two like fractions:
    126/560 + 100/560 = 126 + 100/560 = 226/560
  5. 226/560 simplified gives 113/280
  6. So, 18/80 + 5/28 = 113/280

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