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Add 3/7 and 45/80

3/7 + 45/80 is 111/112.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 7 × 80 = 560,
    3/7 = 3 × 80/7 × 80 = 240/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    45/80 = 45 × 7/80 × 7 = 315/560
  4. Add the two like fractions:
    240/560 + 315/560 = 240 + 315/560 = 555/560
  5. 555/560 simplified gives 111/112
  6. So, 3/7 + 45/80 = 111/112

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