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Add 30/56 and 15/80

30/56 + 15/80 is 81/112.

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,
    30/56 = 30 × 10/56 × 10 = 300/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    15/80 = 15 × 7/80 × 7 = 105/560
  4. Add the two like fractions:
    300/560 + 105/560 = 300 + 105/560 = 405/560
  5. 405/560 simplified gives 81/112
  6. So, 30/56 + 15/80 = 81/112

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