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Add 30/35 and 56/80

30/35 + 56/80 is 109/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 35 × 16 = 560,
    30/35 = 30 × 16/35 × 16 = 480/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    56/80 = 56 × 7/80 × 7 = 392/560
  4. Add the two like fractions:
    480/560 + 392/560 = 480 + 392/560 = 872/560
  5. 872/560 simplified gives 109/70
  6. So, 30/35 + 56/80 = 109/70
    In mixed form: 139/70

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