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Add 15/56 and 18/80

15/56 + 18/80 is 69/140.

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,
    15/56 = 15 × 10/56 × 10 = 150/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    18/80 = 18 × 7/80 × 7 = 126/560
  4. Add the two like fractions:
    150/560 + 126/560 = 150 + 126/560 = 276/560
  5. 276/560 simplified gives 69/140
  6. So, 15/56 + 18/80 = 69/140

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