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Add 30/35 and 45/80

30/35 + 45/80 is 159/112.

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,
    45/80 = 45 × 7/80 × 7 = 315/560
  4. Add the two like fractions:
    480/560 + 315/560 = 480 + 315/560 = 795/560
  5. 795/560 simplified gives 159/112
  6. So, 30/35 + 45/80 = 159/112
    In mixed form: 147/112

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