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Add 81/14 and 20/80

1st number: 5 11/14, 2nd number: 20/80

81/14 + 20/80 is 169/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 14 × 40 = 560,
    81/14 = 81 × 40/14 × 40 = 3240/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    20/80 = 20 × 7/80 × 7 = 140/560
  4. Add the two like fractions:
    3240/560 + 140/560 = 3240 + 140/560 = 3380/560
  5. 3380/560 simplified gives 169/28
  6. So, 81/14 + 20/80 = 169/28
    In mixed form: 61/28

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